Finding the Fourth Proportional to 5,670.06, 7,821.81 and 3,681.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,670.06 : 7,821.81 = 3,681.72 : x
2. Step 2: Convert to fraction form
   5,670.06/7,821.81 = 3,681.72/x
3. Step 3: Cross multiply
   5,670.06x = 7,821.81 × 3,681.72
4. Step 4: Simplify right side
   5,670.06x = 28,797,714.31
5. Step 5: Solve for x
   x = 28,797,714.31/5,670.06
6. Step 6: Final answer
   x = 5,078.91