Finding the Fourth Proportional to 5,079.36, 7,010.72 and 3,089.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,079.36 : 7,010.72 = 3,089.12 : x
2. Step 2: Convert to fraction form
   5,079.36/7,010.72 = 3,089.12/x
3. Step 3: Cross multiply
   5,079.36x = 7,010.72 × 3,089.12
4. Step 4: Simplify right side
   5,079.36x = 21,656,955.37
5. Step 5: Solve for x
   x = 21,656,955.37/5,079.36
6. Step 6: Final answer
   x = 4,263.72