Finding the Fourth Proportional to 23,730.32, 32,747.52 and 13,120.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,730.32 : 32,747.52 = 13,120.08 : x
2. Step 2: Convert to fraction form
   23,730.32/32,747.52 = 13,120.08/x
3. Step 3: Cross multiply
   23,730.32x = 32,747.52 × 13,120.08
4. Step 4: Simplify right side
   23,730.32x = 429,650,082.20
5. Step 5: Solve for x
   x = 429,650,082.20/23,730.32
6. Step 6: Final answer
   x = 18,105.53