Finding the Fourth Proportional to 10,978.50, 15,150.33 and 6,262.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.50 : 15,150.33 = 6,262.89 : x
2. Step 2: Convert to fraction form
   10,978.50/15,150.33 = 6,262.89/x
3. Step 3: Cross multiply
   10,978.50x = 15,150.33 × 6,262.89
4. Step 4: Simplify right side
   10,978.50x = 94,884,850.25
5. Step 5: Solve for x
   x = 94,884,850.25/10,978.50
6. Step 6: Final answer
   x = 8,642.79