Finding the Fourth Proportional to 7,017.12, 10,523.82 and 2,085.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017.12 : 10,523.82 = 2,085.45 : x
2. Step 2: Convert to fraction form
   7,017.12/10,523.82 = 2,085.45/x
3. Step 3: Cross multiply
   7,017.12x = 10,523.82 × 2,085.45
4. Step 4: Simplify right side
   7,017.12x = 21,946,900.42
5. Step 5: Solve for x
   x = 21,946,900.42/7,017.12
6. Step 6: Final answer
   x = 3,127.62