Finding the Fourth Proportional to 5,978.48, 8,248.62 and 3,742.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.48 : 8,248.62 = 3,742.70 : x
2. Step 2: Convert to fraction form
   5,978.48/8,248.62 = 3,742.70/x
3. Step 3: Cross multiply
   5,978.48x = 8,248.62 × 3,742.70
4. Step 4: Simplify right side
   5,978.48x = 30,872,110.07
5. Step 5: Solve for x
   x = 30,872,110.07/5,978.48
6. Step 6: Final answer
   x = 5,163.87