Finding the Fourth Proportional to 22,592.49, 31,177.61 and 12,521.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,592.49 : 31,177.61 = 12,521.55 : x
2. Step 2: Convert to fraction form
   22,592.49/31,177.61 = 12,521.55/x
3. Step 3: Cross multiply
   22,592.49x = 31,177.61 × 12,521.55
4. Step 4: Simplify right side
   22,592.49x = 390,392,103.76
5. Step 5: Solve for x
   x = 390,392,103.76/22,592.49
6. Step 6: Final answer
   x = 17,279.73