Finding the Fourth Proportional to 113,003.50, 155,949.70 and 62,702.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,003.50 : 155,949.70 = 62,702.50 : x
2. Step 2: Convert to fraction form
   113,003.50/155,949.70 = 62,702.50/x
3. Step 3: Cross multiply
   113,003.50x = 155,949.70 × 62,702.50
4. Step 4: Simplify right side
   113,003.50x = 9,778,436,064.25
5. Step 5: Solve for x
   x = 9,778,436,064.25/113,003.50
6. Step 6: Final answer
   x = 86,532.15