Finding the Fourth Proportional to 10,146.78, 13,993.49 and 6,370.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,146.78 : 13,993.49 = 6,370.30 : x
2. Step 2: Convert to fraction form
   10,146.78/13,993.49 = 6,370.30/x
3. Step 3: Cross multiply
   10,146.78x = 13,993.49 × 6,370.30
4. Step 4: Simplify right side
   10,146.78x = 89,142,762.76
5. Step 5: Solve for x
   x = 89,142,762.76/10,146.78
6. Step 6: Final answer
   x = 8,785.33