Finding the Fourth Proportional to 33,615.72, 50,411.82 and 9,916.98

Step by Step Solution

1. Step 1: Write the proportion equation
   33,615.72 : 50,411.82 = 9,916.98 : x
2. Step 2: Convert to fraction form
   33,615.72/50,411.82 = 9,916.98/x
3. Step 3: Cross multiply
   33,615.72x = 50,411.82 × 9,916.98
4. Step 4: Simplify right side
   33,615.72x = 499,933,010.70
5. Step 5: Solve for x
   x = 499,933,010.70/33,615.72
6. Step 6: Final answer
   x = 14,872.00