Finding the Fourth Proportional to 5,134.17, 7,085.16 and 2,776.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,134.17 : 7,085.16 = 2,776.31 : x
2. Step 2: Convert to fraction form
   5,134.17/7,085.16 = 2,776.31/x
3. Step 3: Cross multiply
   5,134.17x = 7,085.16 × 2,776.31
4. Step 4: Simplify right side
   5,134.17x = 19,670,600.56
5. Step 5: Solve for x
   x = 19,670,600.56/5,134.17
6. Step 6: Final answer
   x = 3,831.31