Finding the Fourth Proportional to 3,508.31, 5,257.86 and 3,061.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,508.31 : 5,257.86 = 3,061.35 : x
2. Step 2: Convert to fraction form
   3,508.31/5,257.86 = 3,061.35/x
3. Step 3: Cross multiply
   3,508.31x = 5,257.86 × 3,061.35
4. Step 4: Simplify right side
   3,508.31x = 16,096,149.71
5. Step 5: Solve for x
   x = 16,096,149.71/3,508.31
6. Step 6: Final answer
   x = 4,588.01