Finding the Fourth Proportional to 23,689.20, 32,689.92 and 13,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,689.20 : 32,689.92 = 13,610.50 : x
2. Step 2: Convert to fraction form
   23,689.20/32,689.92 = 13,610.50/x
3. Step 3: Cross multiply
   23,689.20x = 32,689.92 × 13,610.50
4. Step 4: Simplify right side
   23,689.20x = 444,926,156.16
5. Step 5: Solve for x
   x = 444,926,156.16/23,689.20
6. Step 6: Final answer
   x = 18,781.82