Finding the Fourth Proportional to 5,592.27, 7,720.35 and 3,918.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,592.27 : 7,720.35 = 3,918.81 : x
2. Step 2: Convert to fraction form
   5,592.27/7,720.35 = 3,918.81/x
3. Step 3: Cross multiply
   5,592.27x = 7,720.35 × 3,918.81
4. Step 4: Simplify right side
   5,592.27x = 30,254,584.78
5. Step 5: Solve for x
   x = 30,254,584.78/5,592.27
6. Step 6: Final answer
   x = 5,410.07