Finding the Fourth Proportional to 10,978.92, 15,152.34 and 6,264.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.92 : 15,152.34 = 6,264.12 : x
2. Step 2: Convert to fraction form
   10,978.92/15,152.34 = 6,264.12/x
3. Step 3: Cross multiply
   10,978.92x = 15,152.34 × 6,264.12
4. Step 4: Simplify right side
   10,978.92x = 94,916,076.04
5. Step 5: Solve for x
   x = 94,916,076.04/10,978.92
6. Step 6: Final answer
   x = 8,645.30