Finding the Fourth Proportional to 5,417.15, 8,118.54 and 2,784.54

Step by Step Solution

1. Step 1: Write the proportion equation
   5,417.15 : 8,118.54 = 2,784.54 : x
2. Step 2: Convert to fraction form
   5,417.15/8,118.54 = 2,784.54/x
3. Step 3: Cross multiply
   5,417.15x = 8,118.54 × 2,784.54
4. Step 4: Simplify right side
   5,417.15x = 22,606,399.37
5. Step 5: Solve for x
   x = 22,606,399.37/5,417.15
6. Step 6: Final answer
   x = 4,173.12