Finding the Fourth Proportional to 71,849.02, 99,147.72 and 39,577.36

Step by Step Solution

1. Step 1: Write the proportion equation
   71,849.02 : 99,147.72 = 39,577.36 : x
2. Step 2: Convert to fraction form
   71,849.02/99,147.72 = 39,577.36/x
3. Step 3: Cross multiply
   71,849.02x = 99,147.72 × 39,577.36
4. Step 4: Simplify right side
   71,849.02x = 3,924,005,007.62
5. Step 5: Solve for x
   x = 3,924,005,007.62/71,849.02
6. Step 6: Final answer
   x = 54,614.59