Finding the Fourth Proportional to 23,728.20, 32,743.27 and 13,117

Step by Step Solution

1. Step 1: Write the proportion equation
   23,728.20 : 32,743.27 = 13,117 : x
2. Step 2: Convert to fraction form
   23,728.20/32,743.27 = 13,117/x
3. Step 3: Cross multiply
   23,728.20x = 32,743.27 × 13,117
4. Step 4: Simplify right side
   23,728.20x = 429,493,472.59
5. Step 5: Solve for x
   x = 429,493,472.59/23,728.20
6. Step 6: Final answer
   x = 18,100.55