Finding the Fourth Proportional to 3,972.56, 5,928.82 and 3,868.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,972.56 : 5,928.82 = 3,868.88 : x
2. Step 2: Convert to fraction form
   3,972.56/5,928.82 = 3,868.88/x
3. Step 3: Cross multiply
   3,972.56x = 5,928.82 × 3,868.88
4. Step 4: Simplify right side
   3,972.56x = 22,937,893.12
5. Step 5: Solve for x
   x = 22,937,893.12/3,972.56
6. Step 6: Final answer
   x = 5,774.08