Finding the Fourth Proportional to 8,858.42, 13,279.43 and 4,960.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,858.42 : 13,279.43 = 4,960.10 : x
2. Step 2: Convert to fraction form
   8,858.42/13,279.43 = 4,960.10/x
3. Step 3: Cross multiply
   8,858.42x = 13,279.43 × 4,960.10
4. Step 4: Simplify right side
   8,858.42x = 65,867,209.55
5. Step 5: Solve for x
   x = 65,867,209.55/8,858.42
6. Step 6: Final answer
   x = 7,435.55