Finding the Fourth Proportional to 8,739.33, 13,108.82 and 2,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,739.33 : 13,108.82 = 2,165.50 : x
2. Step 2: Convert to fraction form
   8,739.33/13,108.82 = 2,165.50/x
3. Step 3: Cross multiply
   8,739.33x = 13,108.82 × 2,165.50
4. Step 4: Simplify right side
   8,739.33x = 28,387,155.27
5. Step 5: Solve for x
   x = 28,387,155.27/8,739.33
6. Step 6: Final answer
   x = 3,248.21