Finding the Fourth Proportional to 11,139.32, 15,372.25 and 6,103.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,139.32 : 15,372.25 = 6,103.86 : x
2. Step 2: Convert to fraction form
   11,139.32/15,372.25 = 6,103.86/x
3. Step 3: Cross multiply
   11,139.32x = 15,372.25 × 6,103.86
4. Step 4: Simplify right side
   11,139.32x = 93,830,061.89
5. Step 5: Solve for x
   x = 93,830,061.89/11,139.32
6. Step 6: Final answer
   x = 8,423.32