Finding the Fourth Proportional to 5,118.72, 7,030.88 and 5,020.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,118.72 : 7,030.88 = 5,020.32 : x
2. Step 2: Convert to fraction form
   5,118.72/7,030.88 = 5,020.32/x
3. Step 3: Cross multiply
   5,118.72x = 7,030.88 × 5,020.32
4. Step 4: Simplify right side
   5,118.72x = 35,297,267.48
5. Step 5: Solve for x
   x = 35,297,267.48/5,118.72
6. Step 6: Final answer
   x = 6,895.72