Finding the Fourth Proportional to 9,888.38, 13,650.90 and 5,695.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,888.38 : 13,650.90 = 5,695.82 : x
2. Step 2: Convert to fraction form
   9,888.38/13,650.90 = 5,695.82/x
3. Step 3: Cross multiply
   9,888.38x = 13,650.90 × 5,695.82
4. Step 4: Simplify right side
   9,888.38x = 77,753,069.24
5. Step 5: Solve for x
   x = 77,753,069.24/9,888.38
6. Step 6: Final answer
   x = 7,863.07