Finding the Fourth Proportional to 16,123.10, 24,158.73 and 13,531.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,123.10 : 24,158.73 = 13,531.10 : x
2. Step 2: Convert to fraction form
   16,123.10/24,158.73 = 13,531.10/x
3. Step 3: Cross multiply
   16,123.10x = 24,158.73 × 13,531.10
4. Step 4: Simplify right side
   16,123.10x = 326,894,191.50
5. Step 5: Solve for x
   x = 326,894,191.50/16,123.10
6. Step 6: Final answer
   x = 20,274.90