Finding the Fourth Proportional to 9,111.52, 12,572.76 and 5,753.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.52 : 12,572.76 = 5,753.08 : x
2. Step 2: Convert to fraction form
   9,111.52/12,572.76 = 5,753.08/x
3. Step 3: Cross multiply
   9,111.52x = 12,572.76 × 5,753.08
4. Step 4: Simplify right side
   9,111.52x = 72,332,094.10
5. Step 5: Solve for x
   x = 72,332,094.10/9,111.52
6. Step 6: Final answer
   x = 7,938.53