Finding the Fourth Proportional to 22,508.76, 31,061.97 and 12,437.90

Step by Step Solution

1. Step 1: Write the proportion equation
   22,508.76 : 31,061.97 = 12,437.90 : x
2. Step 2: Convert to fraction form
   22,508.76/31,061.97 = 12,437.90/x
3. Step 3: Cross multiply
   22,508.76x = 31,061.97 × 12,437.90
4. Step 4: Simplify right side
   22,508.76x = 386,345,521.35
5. Step 5: Solve for x
   x = 386,345,521.35/22,508.76
6. Step 6: Final answer
   x = 17,164.23