Finding the Fourth Proportional to 23,301.86, 32,156.60 and 12,691.53

Step by Step Solution

1. Step 1: Write the proportion equation
   23,301.86 : 32,156.60 = 12,691.53 : x
2. Step 2: Convert to fraction form
   23,301.86/32,156.60 = 12,691.53/x
3. Step 3: Cross multiply
   23,301.86x = 32,156.60 × 12,691.53
4. Step 4: Simplify right side
   23,301.86x = 408,116,390.14
5. Step 5: Solve for x
   x = 408,116,390.14/23,301.86
6. Step 6: Final answer
   x = 17,514.33