Finding the Fourth Proportional to 23,380.86, 32,268.36 and 13,311.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,380.86 : 32,268.36 = 13,311.72 : x
2. Step 2: Convert to fraction form
   23,380.86/32,268.36 = 13,311.72/x
3. Step 3: Cross multiply
   23,380.86x = 32,268.36 × 13,311.72
4. Step 4: Simplify right side
   23,380.86x = 429,547,373.18
5. Step 5: Solve for x
   x = 429,547,373.18/23,380.86
6. Step 6: Final answer
   x = 18,371.75