Finding the Fourth Proportional to 7,012.45, 10,517.86 and 2,081.58

Step by Step Solution

1. Step 1: Write the proportion equation
   7,012.45 : 10,517.86 = 2,081.58 : x
2. Step 2: Convert to fraction form
   7,012.45/10,517.86 = 2,081.58/x
3. Step 3: Cross multiply
   7,012.45x = 10,517.86 × 2,081.58
4. Step 4: Simplify right side
   7,012.45x = 21,893,767.02
5. Step 5: Solve for x
   x = 21,893,767.02/7,012.45
6. Step 6: Final answer
   x = 3,122.13