Finding the Fourth Proportional to 10,215.08, 14,105.16 and 6,444.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,215.08 : 14,105.16 = 6,444.32 : x
2. Step 2: Convert to fraction form
   10,215.08/14,105.16 = 6,444.32/x
3. Step 3: Cross multiply
   10,215.08x = 14,105.16 × 6,444.32
4. Step 4: Simplify right side
   10,215.08x = 90,898,164.69
5. Step 5: Solve for x
   x = 90,898,164.69/10,215.08
6. Step 6: Final answer
   x = 8,898.43