Finding the Fourth Proportional to 23,061.50, 31,824.88 and 13,125.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,061.50 : 31,824.88 = 13,125.50 : x
2. Step 2: Convert to fraction form
   23,061.50/31,824.88 = 13,125.50/x
3. Step 3: Cross multiply
   23,061.50x = 31,824.88 × 13,125.50
4. Step 4: Simplify right side
   23,061.50x = 417,717,462.44
5. Step 5: Solve for x
   x = 417,717,462.44/23,061.50
6. Step 6: Final answer
   x = 18,113.20