Finding the Fourth Proportional to 72,715.77, 100,314.96 and 42,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,715.77 : 100,314.96 = 42,487.50 : x
2. Step 2: Convert to fraction form
   72,715.77/100,314.96 = 42,487.50/x
3. Step 3: Cross multiply
   72,715.77x = 100,314.96 × 42,487.50
4. Step 4: Simplify right side
   72,715.77x = 4,262,131,863.00
5. Step 5: Solve for x
   x = 4,262,131,863.00/72,715.77
6. Step 6: Final answer
   x = 58,613.58