Finding the Fourth Proportional to 10,978.82, 15,150.63 and 6,263.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.82 : 15,150.63 = 6,263.18 : x
2. Step 2: Convert to fraction form
   10,978.82/15,150.63 = 6,263.18/x
3. Step 3: Cross multiply
   10,978.82x = 15,150.63 × 6,263.18
4. Step 4: Simplify right side
   10,978.82x = 94,891,122.80
5. Step 5: Solve for x
   x = 94,891,122.80/10,978.82
6. Step 6: Final answer
   x = 8,643.11