Finding the Fourth Proportional to 22,510.22, 31,064.03 and 12,438.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,510.22 : 31,064.03 = 12,438.62 : x
2. Step 2: Convert to fraction form
   22,510.22/31,064.03 = 12,438.62/x
3. Step 3: Cross multiply
   22,510.22x = 31,064.03 × 12,438.62
4. Step 4: Simplify right side
   22,510.22x = 386,393,509.52
5. Step 5: Solve for x
   x = 386,393,509.52/22,510.22
6. Step 6: Final answer
   x = 17,165.25