Finding the Fourth Proportional to 5,399.13, 7,402.20 and 5,300.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,399.13 : 7,402.20 = 5,300.73 : x
2. Step 2: Convert to fraction form
   5,399.13/7,402.20 = 5,300.73/x
3. Step 3: Cross multiply
   5,399.13x = 7,402.20 × 5,300.73
4. Step 4: Simplify right side
   5,399.13x = 39,237,063.61
5. Step 5: Solve for x
   x = 39,237,063.61/5,399.13
6. Step 6: Final answer
   x = 7,267.29