Finding the Fourth Proportional to 17,498.72, 24,158.28 and 11,528.20

Step by Step Solution

1. Step 1: Write the proportion equation
   17,498.72 : 24,158.28 = 11,528.20 : x
2. Step 2: Convert to fraction form
   17,498.72/24,158.28 = 11,528.20/x
3. Step 3: Cross multiply
   17,498.72x = 24,158.28 × 11,528.20
4. Step 4: Simplify right side
   17,498.72x = 278,501,483.50
5. Step 5: Solve for x
   x = 278,501,483.50/17,498.72
6. Step 6: Final answer
   x = 15,915.53