Finding the Fourth Proportional to 5,399.25, 8,102.52 and 2,111.93

Step by Step Solution

1. Step 1: Write the proportion equation
   5,399.25 : 8,102.52 = 2,111.93 : x
2. Step 2: Convert to fraction form
   5,399.25/8,102.52 = 2,111.93/x
3. Step 3: Cross multiply
   5,399.25x = 8,102.52 × 2,111.93
4. Step 4: Simplify right side
   5,399.25x = 17,111,955.06
5. Step 5: Solve for x
   x = 17,111,955.06/5,399.25
6. Step 6: Final answer
   x = 3,169.32