Finding the Fourth Proportional to 10,387.30, 14,334.33 and 5,671.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.30 : 14,334.33 = 5,671.30 : x
2. Step 2: Convert to fraction form
   10,387.30/14,334.33 = 5,671.30/x
3. Step 3: Cross multiply
   10,387.30x = 14,334.33 × 5,671.30
4. Step 4: Simplify right side
   10,387.30x = 81,294,285.73
5. Step 5: Solve for x
   x = 81,294,285.73/10,387.30
6. Step 6: Final answer
   x = 7,826.32