Finding the Fourth Proportional to 22,479.49, 31,005.61 and 15,766.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,479.49 : 31,005.61 = 15,766.62 : x
2. Step 2: Convert to fraction form
   22,479.49/31,005.61 = 15,766.62/x
3. Step 3: Cross multiply
   22,479.49x = 31,005.61 × 15,766.62
4. Step 4: Simplify right side
   22,479.49x = 488,853,670.74
5. Step 5: Solve for x
   x = 488,853,670.74/22,479.49
6. Step 6: Final answer
   x = 21,746.65