Finding the Fourth Proportional to 14,616.52, 21,916.82 and 7,117.54

Step by Step Solution

1. Step 1: Write the proportion equation
   14,616.52 : 21,916.82 = 7,117.54 : x
2. Step 2: Convert to fraction form
   14,616.52/21,916.82 = 7,117.54/x
3. Step 3: Cross multiply
   14,616.52x = 21,916.82 × 7,117.54
4. Step 4: Simplify right side
   14,616.52x = 155,993,843.02
5. Step 5: Solve for x
   x = 155,993,843.02/14,616.52
6. Step 6: Final answer
   x = 10,672.43