Finding the Fourth Proportional to 22,617.91, 31,216.45 and 12,549.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,617.91 : 31,216.45 = 12,549.59 : x
2. Step 2: Convert to fraction form
   22,617.91/31,216.45 = 12,549.59/x
3. Step 3: Cross multiply
   22,617.91x = 31,216.45 × 12,549.59
4. Step 4: Simplify right side
   22,617.91x = 391,753,648.76
5. Step 5: Solve for x
   x = 391,753,648.76/22,617.91
6. Step 6: Final answer
   x = 17,320.51