Finding the Fourth Proportional to 11,111.52, 15,332.22 and 7,133.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,111.52 : 15,332.22 = 7,133.16 : x
2. Step 2: Convert to fraction form
   11,111.52/15,332.22 = 7,133.16/x
3. Step 3: Cross multiply
   11,111.52x = 15,332.22 × 7,133.16
4. Step 4: Simplify right side
   11,111.52x = 109,367,178.42
5. Step 5: Solve for x
   x = 109,367,178.42/11,111.52
6. Step 6: Final answer
   x = 9,842.68