Finding the Fourth Proportional to 6,428.18, 8,871.72 and 3,595.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,428.18 : 8,871.72 = 3,595.72 : x
2. Step 2: Convert to fraction form
   6,428.18/8,871.72 = 3,595.72/x
3. Step 3: Cross multiply
   6,428.18x = 8,871.72 × 3,595.72
4. Step 4: Simplify right side
   6,428.18x = 31,900,158.70
5. Step 5: Solve for x
   x = 31,900,158.70/6,428.18
6. Step 6: Final answer
   x = 4,962.55