Finding the Fourth Proportional to 9,342.72, 14,018.16 and 4,959.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,342.72 : 14,018.16 = 4,959.12 : x
2. Step 2: Convert to fraction form
   9,342.72/14,018.16 = 4,959.12/x
3. Step 3: Cross multiply
   9,342.72x = 14,018.16 × 4,959.12
4. Step 4: Simplify right side
   9,342.72x = 69,517,737.62
5. Step 5: Solve for x
   x = 69,517,737.62/9,342.72
6. Step 6: Final answer
   x = 7,440.85