Finding the Fourth Proportional to 62,792.96, 86,618.24 and 39,200

Step by Step Solution

1. Step 1: Write the proportion equation
   62,792.96 : 86,618.24 = 39,200 : x
2. Step 2: Convert to fraction form
   62,792.96/86,618.24 = 39,200/x
3. Step 3: Cross multiply
   62,792.96x = 86,618.24 × 39,200
4. Step 4: Simplify right side
   62,792.96x = 3,395,435,008
5. Step 5: Solve for x
   x = 3,395,435,008/62,792.96
6. Step 6: Final answer
   x = 54,073.50