Finding the Fourth Proportional to 6,427.72, 8,870.34 and 3,633.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,427.72 : 8,870.34 = 3,633.28 : x
2. Step 2: Convert to fraction form
   6,427.72/8,870.34 = 3,633.28/x
3. Step 3: Cross multiply
   6,427.72x = 8,870.34 × 3,633.28
4. Step 4: Simplify right side
   6,427.72x = 32,228,428.92
5. Step 5: Solve for x
   x = 32,228,428.92/6,427.72
6. Step 6: Final answer
   x = 5,013.98