Finding the Fourth Proportional to 8,680.82, 12,992.70 and 4,726.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,680.82 : 12,992.70 = 4,726.04 : x
2. Step 2: Convert to fraction form
   8,680.82/12,992.70 = 4,726.04/x
3. Step 3: Cross multiply
   8,680.82x = 12,992.70 × 4,726.04
4. Step 4: Simplify right side
   8,680.82x = 61,404,019.91
5. Step 5: Solve for x
   x = 61,404,019.91/8,680.82
6. Step 6: Final answer
   x = 7,073.53