Finding the Fourth Proportional to 5,498.36, 7,587.42 and 3,140.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,498.36 : 7,587.42 = 3,140.72 : x
2. Step 2: Convert to fraction form
   5,498.36/7,587.42 = 3,140.72/x
3. Step 3: Cross multiply
   5,498.36x = 7,587.42 × 3,140.72
4. Step 4: Simplify right side
   5,498.36x = 23,829,961.74
5. Step 5: Solve for x
   x = 23,829,961.74/5,498.36
6. Step 6: Final answer
   x = 4,334.01