Given the following data and a 4-period weighted moving average. t At 1 131 2 131 3 111 4 120 5 149 Suppose the weights of the four periods are, 0.13, 0.18, 0.27 and X, for the OLDEST to NEWEST periods, respectively. The summation of all four weights is equal to 1. Compute the 4-period weighted moving average forecast in period 6. Enter your answer with ZERO Decimal Points.