Finding the Fourth Proportional to 9,282.76, 13,919.82 and 5,388.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,282.76 : 13,919.82 = 5,388.28 : x
2. Step 2: Convert to fraction form
   9,282.76/13,919.82 = 5,388.28/x
3. Step 3: Cross multiply
   9,282.76x = 13,919.82 × 5,388.28
4. Step 4: Simplify right side
   9,282.76x = 75,003,887.71
5. Step 5: Solve for x
   x = 75,003,887.71/9,282.76
6. Step 6: Final answer
   x = 8,079.91