Finding the Fourth Proportional to 23,132.79, 31,915.62 and 13,568.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,132.79 : 31,915.62 = 13,568.31 : x
2. Step 2: Convert to fraction form
   23,132.79/31,915.62 = 13,568.31/x
3. Step 3: Cross multiply
   23,132.79x = 31,915.62 × 13,568.31
4. Step 4: Simplify right side
   23,132.79x = 433,041,026.00
5. Step 5: Solve for x
   x = 433,041,026.00/23,132.79
6. Step 6: Final answer
   x = 18,719.79