Finding the Fourth Proportional to 5,131.29, 7,081.17 and 2,773.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.29 : 7,081.17 = 2,773.42 : x
2. Step 2: Convert to fraction form
   5,131.29/7,081.17 = 2,773.42/x
3. Step 3: Cross multiply
   5,131.29x = 7,081.17 × 2,773.42
4. Step 4: Simplify right side
   5,131.29x = 19,639,058.50
5. Step 5: Solve for x
   x = 19,639,058.50/5,131.29
6. Step 6: Final answer
   x = 3,827.31