Finding the Fourth Proportional to 11,139.31, 15,372.03 and 6,103.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139.31 : 15,372.03 = 6,103.52 : x
2. Step 2: Convert to fraction form
   11,139.31/15,372.03 = 6,103.52/x
3. Step 3: Cross multiply
   11,139.31x = 15,372.03 × 6,103.52
4. Step 4: Simplify right side
   11,139.31x = 93,823,461.89
5. Step 5: Solve for x
   x = 93,823,461.89/11,139.31
6. Step 6: Final answer
   x = 8,422.74