Finding the Fourth Proportional to 72,904.88, 99,952.58 and 71,576.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,904.88 : 99,952.58 = 71,576.28 : x
2. Step 2: Convert to fraction form
   72,904.88/99,952.58 = 71,576.28/x
3. Step 3: Cross multiply
   72,904.88x = 99,952.58 × 71,576.28
4. Step 4: Simplify right side
   72,904.88x = 7,154,233,852.80
5. Step 5: Solve for x
   x = 7,154,233,852.80/72,904.88
6. Step 6: Final answer
   x = 98,131.07