Finding the Fourth Proportional to 22,472.74, 31,014.26 and 12,402.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,472.74 : 31,014.26 = 12,402.15 : x
2. Step 2: Convert to fraction form
   22,472.74/31,014.26 = 12,402.15/x
3. Step 3: Cross multiply
   22,472.74x = 31,014.26 × 12,402.15
4. Step 4: Simplify right side
   22,472.74x = 384,643,504.66
5. Step 5: Solve for x
   x = 384,643,504.66/22,472.74
6. Step 6: Final answer
   x = 17,116.00