Finding the Fourth Proportional to 71,565.58, 98,760.72 and 39,734.56

Step by Step Solution

1. Step 1: Write the proportion equation
   71,565.58 : 98,760.72 = 39,734.56 : x
2. Step 2: Convert to fraction form
   71,565.58/98,760.72 = 39,734.56/x
3. Step 3: Cross multiply
   71,565.58x = 98,760.72 × 39,734.56
4. Step 4: Simplify right side
   71,565.58x = 3,924,213,754.48
5. Step 5: Solve for x
   x = 3,924,213,754.48/71,565.58
6. Step 6: Final answer
   x = 54,833.81