Finding the Fourth Proportional to 155,906.10, 233,531.10 and 129,662.10

Step by Step Solution

1. Step 1: Write the proportion equation
   155,906.10 : 233,531.10 = 129,662.10 : x
2. Step 2: Convert to fraction form
   155,906.10/233,531.10 = 129,662.10/x
3. Step 3: Cross multiply
   155,906.10x = 233,531.10 × 129,662.10
4. Step 4: Simplify right side
   155,906.10x = 30,280,132,841.31
5. Step 5: Solve for x
   x = 30,280,132,841.31/155,906.10
6. Step 6: Final answer
   x = 194,220.32