Finding the Fourth Proportional to 8,780.29, 12,116.58 and 4,801.15

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.29 : 12,116.58 = 4,801.15 : x
2. Step 2: Convert to fraction form
   8,780.29/12,116.58 = 4,801.15/x
3. Step 3: Cross multiply
   8,780.29x = 12,116.58 × 4,801.15
4. Step 4: Simplify right side
   8,780.29x = 58,173,489.57
5. Step 5: Solve for x
   x = 58,173,489.57/8,780.29
6. Step 6: Final answer
   x = 6,625.46