Finding the Fourth Proportional to 7,279.62, 10,032.56 and 5,286.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,279.62 : 10,032.56 = 5,286.72 : x
2. Step 2: Convert to fraction form
   7,279.62/10,032.56 = 5,286.72/x
3. Step 3: Cross multiply
   7,279.62x = 10,032.56 × 5,286.72
4. Step 4: Simplify right side
   7,279.62x = 53,039,309.17
5. Step 5: Solve for x
   x = 53,039,309.17/7,279.62
6. Step 6: Final answer
   x = 7,286.00