Finding the Fourth Proportional to 16,499.10, 24,748.43 and 5,406.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,499.10 : 24,748.43 = 5,406.15 : x
2. Step 2: Convert to fraction form
   16,499.10/24,748.43 = 5,406.15/x
3. Step 3: Cross multiply
   16,499.10x = 24,748.43 × 5,406.15
4. Step 4: Simplify right side
   16,499.10x = 133,793,697.81
5. Step 5: Solve for x
   x = 133,793,697.81/16,499.10
6. Step 6: Final answer
   x = 8,109.15