Finding the Fourth Proportional to 5,978.93, 8,248.70 and 3,739.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.93 : 8,248.70 = 3,739.96 : x
2. Step 2: Convert to fraction form
   5,978.93/8,248.70 = 3,739.96/x
3. Step 3: Cross multiply
   5,978.93x = 8,248.70 × 3,739.96
4. Step 4: Simplify right side
   5,978.93x = 30,849,748.11
5. Step 5: Solve for x
   x = 30,849,748.11/5,978.93
6. Step 6: Final answer
   x = 5,159.74