Finding the Fourth Proportional to 9,807.17, 14,718.96 and 5,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,807.17 : 14,718.96 = 5,128.82 : x
2. Step 2: Convert to fraction form
   9,807.17/14,718.96 = 5,128.82/x
3. Step 3: Cross multiply
   9,807.17x = 14,718.96 × 5,128.82
4. Step 4: Simplify right side
   9,807.17x = 75,490,797.19
5. Step 5: Solve for x
   x = 75,490,797.19/9,807.17
6. Step 6: Final answer
   x = 7,697.51