Finding the Fourth Proportional to 23,664.86, 32,658.12 and 12,909.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,664.86 : 32,658.12 = 12,909.91 : x
2. Step 2: Convert to fraction form
   23,664.86/32,658.12 = 12,909.91/x
3. Step 3: Cross multiply
   23,664.86x = 32,658.12 × 12,909.91
4. Step 4: Simplify right side
   23,664.86x = 421,613,325.42
5. Step 5: Solve for x
   x = 421,613,325.42/23,664.86
6. Step 6: Final answer
   x = 17,816.01