Finding the Fourth Proportional to 14,103.31, 19,462.55 and 8,438.29

Step by Step Solution

1. Step 1: Write the proportion equation
   14,103.31 : 19,462.55 = 8,438.29 : x
2. Step 2: Convert to fraction form
   14,103.31/19,462.55 = 8,438.29/x
3. Step 3: Cross multiply
   14,103.31x = 19,462.55 × 8,438.29
4. Step 4: Simplify right side
   14,103.31x = 164,230,641.04
5. Step 5: Solve for x
   x = 164,230,641.04/14,103.31
6. Step 6: Final answer
   x = 11,644.83