Finding the Fourth Proportional to 11,031.31, 15,229.50 and 7,265.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,031.31 : 15,229.50 = 7,265.42 : x
2. Step 2: Convert to fraction form
   11,031.31/15,229.50 = 7,265.42/x
3. Step 3: Cross multiply
   11,031.31x = 15,229.50 × 7,265.42
4. Step 4: Simplify right side
   11,031.31x = 110,648,677.56
5. Step 5: Solve for x
   x = 110,648,677.56/11,031.31
6. Step 6: Final answer
   x = 10,030.42