Finding the Fourth Proportional to 22,471.74, 31,012.88 and 12,401.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,471.74 : 31,012.88 = 12,401.15 : x
2. Step 2: Convert to fraction form
   22,471.74/31,012.88 = 12,401.15/x
3. Step 3: Cross multiply
   22,471.74x = 31,012.88 × 12,401.15
4. Step 4: Simplify right side
   22,471.74x = 384,595,159.74
5. Step 5: Solve for x
   x = 384,595,159.74/22,471.74
6. Step 6: Final answer
   x = 17,114.61