Finding the Fourth Proportional to 5,229.02, 7,215.72 and 2,870.96

Step by Step Solution

1. Step 1: Write the proportion equation
   5,229.02 : 7,215.72 = 2,870.96 : x
2. Step 2: Convert to fraction form
   5,229.02/7,215.72 = 2,870.96/x
3. Step 3: Cross multiply
   5,229.02x = 7,215.72 × 2,870.96
4. Step 4: Simplify right side
   5,229.02x = 20,716,043.49
5. Step 5: Solve for x
   x = 20,716,043.49/5,229.02
6. Step 6: Final answer
   x = 3,961.74