Finding the Fourth Proportional to 22,665.39, 31,276.40 and 12,592.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665.39 : 31,276.40 = 12,592.59 : x
2. Step 2: Convert to fraction form
   22,665.39/31,276.40 = 12,592.59/x
3. Step 3: Cross multiply
   22,665.39x = 31,276.40 × 12,592.59
4. Step 4: Simplify right side
   22,665.39x = 393,850,818.91
5. Step 5: Solve for x
   x = 393,850,818.91/22,665.39
6. Step 6: Final answer
   x = 17,376.75