Finding the Fourth Proportional to 5,127.02, 7,073.56 and 3,111.13

Step by Step Solution

1. Step 1: Write the proportion equation
   5,127.02 : 7,073.56 = 3,111.13 : x
2. Step 2: Convert to fraction form
   5,127.02/7,073.56 = 3,111.13/x
3. Step 3: Cross multiply
   5,127.02x = 7,073.56 × 3,111.13
4. Step 4: Simplify right side
   5,127.02x = 22,006,764.72
5. Step 5: Solve for x
   x = 22,006,764.72/5,127.02
6. Step 6: Final answer
   x = 4,292.31