Finding the Fourth Proportional to 6,580.56, 9,081.15 and 3,747.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,580.56 : 9,081.15 = 3,747.78 : x
2. Step 2: Convert to fraction form
   6,580.56/9,081.15 = 3,747.78/x
3. Step 3: Cross multiply
   6,580.56x = 9,081.15 × 3,747.78
4. Step 4: Simplify right side
   6,580.56x = 34,034,152.35
5. Step 5: Solve for x
   x = 34,034,152.35/6,580.56
6. Step 6: Final answer
   x = 5,171.92