Finding the Fourth Proportional to 113,018.50, 155,970.39 and 62,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,018.50 : 155,970.39 = 62,717.50 : x
2. Step 2: Convert to fraction form
   113,018.50/155,970.39 = 62,717.50/x
3. Step 3: Cross multiply
   113,018.50x = 155,970.39 × 62,717.50
4. Step 4: Simplify right side
   113,018.50x = 9,782,072,934.83
5. Step 5: Solve for x
   x = 9,782,072,934.83/113,018.50
6. Step 6: Final answer
   x = 86,552.85