Finding the Fourth Proportional to 10,387.01, 14,333.40 and 5,671.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.01 : 14,333.40 = 5,671.28 : x
2. Step 2: Convert to fraction form
   10,387.01/14,333.40 = 5,671.28/x
3. Step 3: Cross multiply
   10,387.01x = 14,333.40 × 5,671.28
4. Step 4: Simplify right side
   10,387.01x = 81,288,653.09
5. Step 5: Solve for x
   x = 81,288,653.09/10,387.01
6. Step 6: Final answer
   x = 7,826.00