Finding the Fourth Proportional to 5,085.16, 7,017.45 and 2,847.03

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.16 : 7,017.45 = 2,847.03 : x
2. Step 2: Convert to fraction form
   5,085.16/7,017.45 = 2,847.03/x
3. Step 3: Cross multiply
   5,085.16x = 7,017.45 × 2,847.03
4. Step 4: Simplify right side
   5,085.16x = 19,978,909.17
5. Step 5: Solve for x
   x = 19,978,909.17/5,085.16
6. Step 6: Final answer
   x = 3,928.86