Finding the Fourth Proportional to 11,915.52, 17,872.72 and 4,124.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,915.52 : 17,872.72 = 4,124.96 : x
2. Step 2: Convert to fraction form
   11,915.52/17,872.72 = 4,124.96/x
3. Step 3: Cross multiply
   11,915.52x = 17,872.72 × 4,124.96
4. Step 4: Simplify right side
   11,915.52x = 73,724,255.09
5. Step 5: Solve for x
   x = 73,724,255.09/11,915.52
6. Step 6: Final answer
   x = 6,187.25