Finding the Fourth Proportional to 23,393.57, 32,280.12 and 13,320.61

Step by Step Solution

1. Step 1: Write the proportion equation
   23,393.57 : 32,280.12 = 13,320.61 : x
2. Step 2: Convert to fraction form
   23,393.57/32,280.12 = 13,320.61/x
3. Step 3: Cross multiply
   23,393.57x = 32,280.12 × 13,320.61
4. Step 4: Simplify right side
   23,393.57x = 429,990,808.57
5. Step 5: Solve for x
   x = 429,990,808.57/23,393.57
6. Step 6: Final answer
   x = 18,380.73