Finding the Fourth Proportional to 8,780.59, 12,116.86 and 4,801.65

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.59 : 12,116.86 = 4,801.65 : x
2. Step 2: Convert to fraction form
   8,780.59/12,116.86 = 4,801.65/x
3. Step 3: Cross multiply
   8,780.59x = 12,116.86 × 4,801.65
4. Step 4: Simplify right side
   8,780.59x = 58,180,920.82
5. Step 5: Solve for x
   x = 58,180,920.82/8,780.59
6. Step 6: Final answer
   x = 6,626.08