Finding the Fourth Proportional to 10,473.72, 14,440.32 and 8,578.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,473.72 : 14,440.32 = 8,578.32 : x
2. Step 2: Convert to fraction form
   10,473.72/14,440.32 = 8,578.32/x
3. Step 3: Cross multiply
   10,473.72x = 14,440.32 × 8,578.32
4. Step 4: Simplify right side
   10,473.72x = 123,873,685.86
5. Step 5: Solve for x
   x = 123,873,685.86/10,473.72
6. Step 6: Final answer
   x = 11,827.10