Finding the Fourth Proportional to 7,012.17, 10,519.20 and 2,081.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.17 : 10,519.20 = 2,081.88 : x
2. Step 2: Convert to fraction form
   7,012.17/10,519.20 = 2,081.88/x
3. Step 3: Cross multiply
   7,012.17x = 10,519.20 × 2,081.88
4. Step 4: Simplify right side
   7,012.17x = 21,899,712.10
5. Step 5: Solve for x
   x = 21,899,712.10/7,012.17
6. Step 6: Final answer
   x = 3,123.10