Finding the Fourth Proportional to 5,134.29, 7,085.31 and 2,776.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,134.29 : 7,085.31 = 2,776.42 : x
2. Step 2: Convert to fraction form
   5,134.29/7,085.31 = 2,776.42/x
3. Step 3: Cross multiply
   5,134.29x = 7,085.31 × 2,776.42
4. Step 4: Simplify right side
   5,134.29x = 19,671,796.39
5. Step 5: Solve for x
   x = 19,671,796.39/5,134.29
6. Step 6: Final answer
   x = 3,831.45