Finding the Fourth Proportional to 112,700.50, 155,531.55 and 62,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   112,700.50 : 155,531.55 = 62,399.50 : x
2. Step 2: Convert to fraction form
   112,700.50/155,531.55 = 62,399.50/x
3. Step 3: Cross multiply
   112,700.50x = 155,531.55 × 62,399.50
4. Step 4: Simplify right side
   112,700.50x = 9,705,090,954.23
5. Step 5: Solve for x
   x = 9,705,090,954.23/112,700.50
6. Step 6: Final answer
   x = 86,114.00