Finding the Fourth Proportional to 9,127.10, 12,592.31 and 7,445.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.10 : 12,592.31 = 7,445.61 : x
2. Step 2: Convert to fraction form
   9,127.10/12,592.31 = 7,445.61/x
3. Step 3: Cross multiply
   9,127.10x = 12,592.31 × 7,445.61
4. Step 4: Simplify right side
   9,127.10x = 93,757,392.03
5. Step 5: Solve for x
   x = 93,757,392.03/9,127.10
6. Step 6: Final answer
   x = 10,272.42