Finding the Fourth Proportional to 13,253.83, 18,288.31 and 7,587.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,253.83 : 18,288.31 = 7,587.69 : x
2. Step 2: Convert to fraction form
   13,253.83/18,288.31 = 7,587.69/x
3. Step 3: Cross multiply
   13,253.83x = 18,288.31 × 7,587.69
4. Step 4: Simplify right side
   13,253.83x = 138,766,026.90
5. Step 5: Solve for x
   x = 138,766,026.90/13,253.83
6. Step 6: Final answer
   x = 10,469.88