Finding the Fourth Proportional to 10,500.31, 14,490.25 and 5,785.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,500.31 : 14,490.25 = 5,785.03 : x
2. Step 2: Convert to fraction form
   10,500.31/14,490.25 = 5,785.03/x
3. Step 3: Cross multiply
   10,500.31x = 14,490.25 × 5,785.03
4. Step 4: Simplify right side
   10,500.31x = 83,826,530.96
5. Step 5: Solve for x
   x = 83,826,530.96/10,500.31
6. Step 6: Final answer
   x = 7,983.24