Finding the Fourth Proportional to 17,543.34, 26,089.38 and 16,989.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,543.34 : 26,089.38 = 16,989.62 : x
2. Step 2: Convert to fraction form
   17,543.34/26,089.38 = 16,989.62/x
3. Step 3: Cross multiply
   17,543.34x = 26,089.38 × 16,989.62
4. Step 4: Simplify right side
   17,543.34x = 443,248,521.79
5. Step 5: Solve for x
   x = 443,248,521.79/17,543.34
6. Step 6: Final answer
   x = 25,265.91