Finding the Fourth Proportional to 7,388.28, 11,087.89 and 5,288.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,388.28 : 11,087.89 = 5,288.76 : x
2. Step 2: Convert to fraction form
   7,388.28/11,087.89 = 5,288.76/x
3. Step 3: Cross multiply
   7,388.28x = 11,087.89 × 5,288.76
4. Step 4: Simplify right side
   7,388.28x = 58,641,175.89
5. Step 5: Solve for x
   x = 58,641,175.89/7,388.28
6. Step 6: Final answer
   x = 7,937.05