Finding the Fourth Proportional to 8,498.43, 12,758.55 and 4,605.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.43 : 12,758.55 = 4,605.57 : x
2. Step 2: Convert to fraction form
   8,498.43/12,758.55 = 4,605.57/x
3. Step 3: Cross multiply
   8,498.43x = 12,758.55 × 4,605.57
4. Step 4: Simplify right side
   8,498.43x = 58,760,395.12
5. Step 5: Solve for x
   x = 58,760,395.12/8,498.43
6. Step 6: Final answer
   x = 6,914.26