Finding the Fourth Proportional to 10,490.22, 14,471.72 and 6,238.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,490.22 : 14,471.72 = 6,238.86 : x
2. Step 2: Convert to fraction form
   10,490.22/14,471.72 = 6,238.86/x
3. Step 3: Cross multiply
   10,490.22x = 14,471.72 × 6,238.86
4. Step 4: Simplify right side
   10,490.22x = 90,287,035.04
5. Step 5: Solve for x
   x = 90,287,035.04/10,490.22
6. Step 6: Final answer
   x = 8,606.78