Finding the Fourth Proportional to 28,131.92, 42,142.22 and 22,872.80

Step by Step Solution

1. Step 1: Write the proportion equation
   28,131.92 : 42,142.22 = 22,872.80 : x
2. Step 2: Convert to fraction form
   28,131.92/42,142.22 = 22,872.80/x
3. Step 3: Cross multiply
   28,131.92x = 42,142.22 × 22,872.80
4. Step 4: Simplify right side
   28,131.92x = 963,910,569.62
5. Step 5: Solve for x
   x = 963,910,569.62/28,131.92
6. Step 6: Final answer
   x = 34,263.95