Finding the Fourth Proportional to 7,012.05, 10,518.17 and 2,081.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.05 : 10,518.17 = 2,081.58 : x
2. Step 2: Convert to fraction form
   7,012.05/10,518.17 = 2,081.58/x
3. Step 3: Cross multiply
   7,012.05x = 10,518.17 × 2,081.58
4. Step 4: Simplify right side
   7,012.05x = 21,894,412.31
5. Step 5: Solve for x
   x = 21,894,412.31/7,012.05
6. Step 6: Final answer
   x = 3,122.40