Finding the Fourth Proportional to 5,782.18, 7,980.91 and 3,770.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,782.18 : 7,980.91 = 3,770.61 : x
2. Step 2: Convert to fraction form
   5,782.18/7,980.91 = 3,770.61/x
3. Step 3: Cross multiply
   5,782.18x = 7,980.91 × 3,770.61
4. Step 4: Simplify right side
   5,782.18x = 30,092,909.90
5. Step 5: Solve for x
   x = 30,092,909.90/5,782.18
6. Step 6: Final answer
   x = 5,204.42