Finding the Fourth Proportional to 10,978.62, 15,150.72 and 6,502.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.62 : 15,150.72 = 6,502.28 : x
2. Step 2: Convert to fraction form
   10,978.62/15,150.72 = 6,502.28/x
3. Step 3: Cross multiply
   10,978.62x = 15,150.72 × 6,502.28
4. Step 4: Simplify right side
   10,978.62x = 98,514,223.64
5. Step 5: Solve for x
   x = 98,514,223.64/10,978.62
6. Step 6: Final answer
   x = 8,973.28