Finding the Fourth Proportional to 5,603.34, 7,715.92 and 5,479.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,603.34 : 7,715.92 = 5,479.02 : x
2. Step 2: Convert to fraction form
   5,603.34/7,715.92 = 5,479.02/x
3. Step 3: Cross multiply
   5,603.34x = 7,715.92 × 5,479.02
4. Step 4: Simplify right side
   5,603.34x = 42,275,678.85
5. Step 5: Solve for x
   x = 42,275,678.85/5,603.34
6. Step 6: Final answer
   x = 7,544.73