Finding the Fourth Proportional to 16,650.79, 24,857.55 and 16,066.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,650.79 : 24,857.55 = 16,066.91 : x
2. Step 2: Convert to fraction form
   16,650.79/24,857.55 = 16,066.91/x
3. Step 3: Cross multiply
   16,650.79x = 24,857.55 × 16,066.91
4. Step 4: Simplify right side
   16,650.79x = 399,384,080.81
5. Step 5: Solve for x
   x = 399,384,080.81/16,650.79
6. Step 6: Final answer
   x = 23,985.90