Finding the Fourth Proportional to 103,656.06, 142,957.17 and 83,506.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,656.06 : 142,957.17 = 83,506.50 : x
2. Step 2: Convert to fraction form
   103,656.06/142,957.17 = 83,506.50/x
3. Step 3: Cross multiply
   103,656.06x = 142,957.17 × 83,506.50
4. Step 4: Simplify right side
   103,656.06x = 11,937,852,916.61
5. Step 5: Solve for x
   x = 11,937,852,916.61/103,656.06
6. Step 6: Final answer
   x = 115,167.92