Finding the Fourth Proportional to 5,579.33, 7,699.39 and 3,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,579.33 : 7,699.39 = 3,061.31 : x
2. Step 2: Convert to fraction form
   5,579.33/7,699.39 = 3,061.31/x
3. Step 3: Cross multiply
   5,579.33x = 7,699.39 × 3,061.31
4. Step 4: Simplify right side
   5,579.33x = 23,570,173.45
5. Step 5: Solve for x
   x = 23,570,173.45/5,579.33
6. Step 6: Final answer
   x = 4,224.56