Finding the Fourth Proportional to 71,407.32, 98,538.54 and 39,575.94

Step by Step Solution

1. Step 1: Write the proportion equation
   71,407.32 : 98,538.54 = 39,575.94 : x
2. Step 2: Convert to fraction form
   71,407.32/98,538.54 = 39,575.94/x
3. Step 3: Cross multiply
   71,407.32x = 98,538.54 × 39,575.94
4. Step 4: Simplify right side
   71,407.32x = 3,899,755,346.73
5. Step 5: Solve for x
   x = 3,899,755,346.73/71,407.32
6. Step 6: Final answer
   x = 54,612.82