Finding the Fourth Proportional to 10,978.29, 15,150.51 and 6,200.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.29 : 15,150.51 = 6,200.10 : x
2. Step 2: Convert to fraction form
   10,978.29/15,150.51 = 6,200.10/x
3. Step 3: Cross multiply
   10,978.29x = 15,150.51 × 6,200.10
4. Step 4: Simplify right side
   10,978.29x = 93,934,677.05
5. Step 5: Solve for x
   x = 93,934,677.05/10,978.29
6. Step 6: Final answer
   x = 8,556.40