Finding the Fourth Proportional to 42,283.82, 63,401.10 and 15,990.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,283.82 : 63,401.10 = 15,990.62 : x
2. Step 2: Convert to fraction form
   42,283.82/63,401.10 = 15,990.62/x
3. Step 3: Cross multiply
   42,283.82x = 63,401.10 × 15,990.62
4. Step 4: Simplify right side
   42,283.82x = 1,013,822,520.71
5. Step 5: Solve for x
   x = 1,013,822,520.71/42,283.82
6. Step 6: Final answer
   x = 23,976.61