Finding the Fourth Proportional to 71,798.33, 99,080.73 and 39,967.25

Step by Step Solution

1. Step 1: Write the proportion equation
   71,798.33 : 99,080.73 = 39,967.25 : x
2. Step 2: Convert to fraction form
   71,798.33/99,080.73 = 39,967.25/x
3. Step 3: Cross multiply
   71,798.33x = 99,080.73 × 39,967.25
4. Step 4: Simplify right side
   71,798.33x = 3,959,983,810.69
5. Step 5: Solve for x
   x = 3,959,983,810.69/71,798.33
6. Step 6: Final answer
   x = 55,154.26