Finding the Fourth Proportional to 9,192.72, 12,685.52 and 5,000.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,192.72 : 12,685.52 = 5,000.88 : x
2. Step 2: Convert to fraction form
   9,192.72/12,685.52 = 5,000.88/x
3. Step 3: Cross multiply
   9,192.72x = 12,685.52 × 5,000.88
4. Step 4: Simplify right side
   9,192.72x = 63,438,763.26
5. Step 5: Solve for x
   x = 63,438,763.26/9,192.72
6. Step 6: Final answer
   x = 6,900.98