Finding the Fourth Proportional to 23,613.20, 32,586.06 and 13,002.75

Step by Step Solution

1. Step 1: Write the proportion equation
   23,613.20 : 32,586.06 = 13,002.75 : x
2. Step 2: Convert to fraction form
   23,613.20/32,586.06 = 13,002.75/x
3. Step 3: Cross multiply
   23,613.20x = 32,586.06 × 13,002.75
4. Step 4: Simplify right side
   23,613.20x = 423,708,391.67
5. Step 5: Solve for x
   x = 423,708,391.67/23,613.20
6. Step 6: Final answer
   x = 17,943.71