Finding the Fourth Proportional to 5,981.64, 8,982.18 and 3,687.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,981.64 : 8,982.18 = 3,687.72 : x
2. Step 2: Convert to fraction form
   5,981.64/8,982.18 = 3,687.72/x
3. Step 3: Cross multiply
   5,981.64x = 8,982.18 × 3,687.72
4. Step 4: Simplify right side
   5,981.64x = 33,123,764.83
5. Step 5: Solve for x
   x = 33,123,764.83/5,981.64
6. Step 6: Final answer
   x = 5,537.57