Finding the Fourth Proportional to 14,443.31, 19,933.90 and 8,478.27

Step by Step Solution

1. Step 1: Write the proportion equation
   14,443.31 : 19,933.90 = 8,478.27 : x
2. Step 2: Convert to fraction form
   14,443.31/19,933.90 = 8,478.27/x
3. Step 3: Cross multiply
   14,443.31x = 19,933.90 × 8,478.27
4. Step 4: Simplify right side
   14,443.31x = 169,004,965.16
5. Step 5: Solve for x
   x = 169,004,965.16/14,443.31
6. Step 6: Final answer
   x = 11,701.26