Finding the Fourth Proportional to 5,399.13, 7,453.29 and 3,807.07

Step by Step Solution

1. Step 1: Write the proportion equation
   5,399.13 : 7,453.29 = 3,807.07 : x
2. Step 2: Convert to fraction form
   5,399.13/7,453.29 = 3,807.07/x
3. Step 3: Cross multiply
   5,399.13x = 7,453.29 × 3,807.07
4. Step 4: Simplify right side
   5,399.13x = 28,375,196.76
5. Step 5: Solve for x
   x = 28,375,196.76/5,399.13
6. Step 6: Final answer
   x = 5,255.52