Finding the Fourth Proportional to 5,498.28, 7,588.40 and 3,140.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,498.28 : 7,588.40 = 3,140.56 : x
2. Step 2: Convert to fraction form
   5,498.28/7,588.40 = 3,140.56/x
3. Step 3: Cross multiply
   5,498.28x = 7,588.40 × 3,140.56
4. Step 4: Simplify right side
   5,498.28x = 23,831,825.50
5. Step 5: Solve for x
   x = 23,831,825.50/5,498.28
6. Step 6: Final answer
   x = 4,334.41