Finding the Fourth Proportional to 71,522.56, 98,704.50 and 39,691.72

Step by Step Solution

1. Step 1: Write the proportion equation
   71,522.56 : 98,704.50 = 39,691.72 : x
2. Step 2: Convert to fraction form
   71,522.56/98,704.50 = 39,691.72/x
3. Step 3: Cross multiply
   71,522.56x = 98,704.50 × 39,691.72
4. Step 4: Simplify right side
   71,522.56x = 3,917,751,376.74
5. Step 5: Solve for x
   x = 3,917,751,376.74/71,522.56
6. Step 6: Final answer
   x = 54,776.44