Finding the Fourth Proportional to 12,746.33, 17,590.31 and 7,711.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,746.33 : 17,590.31 = 7,711.47 : x
2. Step 2: Convert to fraction form
   12,746.33/17,590.31 = 7,711.47/x
3. Step 3: Cross multiply
   12,746.33x = 17,590.31 × 7,711.47
4. Step 4: Simplify right side
   12,746.33x = 135,647,181.59
5. Step 5: Solve for x
   x = 135,647,181.59/12,746.33
6. Step 6: Final answer
   x = 10,642.06