Finding the Fourth Proportional to 17,915.52, 26,693.27 and 16,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,915.52 : 26,693.27 = 16,909.50 : x
2. Step 2: Convert to fraction form
   17,915.52/26,693.27 = 16,909.50/x
3. Step 3: Cross multiply
   17,915.52x = 26,693.27 × 16,909.50
4. Step 4: Simplify right side
   17,915.52x = 451,369,764.52
5. Step 5: Solve for x
   x = 451,369,764.52/17,915.52
6. Step 6: Final answer
   x = 25,194.34