Finding the Fourth Proportional to 5,187.94, 7,159.56 and 2,830.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,187.94 : 7,159.56 = 2,830.18 : x
2. Step 2: Convert to fraction form
   5,187.94/7,159.56 = 2,830.18/x
3. Step 3: Cross multiply
   5,187.94x = 7,159.56 × 2,830.18
4. Step 4: Simplify right side
   5,187.94x = 20,262,843.52
5. Step 5: Solve for x
   x = 20,262,843.52/5,187.94
6. Step 6: Final answer
   x = 3,905.76