Finding the Fourth Proportional to 5,123.76, 7,069.59 and 4,002.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.76 : 7,069.59 = 4,002.72 : x
2. Step 2: Convert to fraction form
   5,123.76/7,069.59 = 4,002.72/x
3. Step 3: Cross multiply
   5,123.76x = 7,069.59 × 4,002.72
4. Step 4: Simplify right side
   5,123.76x = 28,297,589.28
5. Step 5: Solve for x
   x = 28,297,589.28/5,123.76
6. Step 6: Final answer
   x = 5,522.82