Finding the Fourth Proportional to 8,884.50, 12,260.61 and 5,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,884.50 : 12,260.61 = 5,158.50 : x
2. Step 2: Convert to fraction form
   8,884.50/12,260.61 = 5,158.50/x
3. Step 3: Cross multiply
   8,884.50x = 12,260.61 × 5,158.50
4. Step 4: Simplify right side
   8,884.50x = 63,246,356.69
5. Step 5: Solve for x
   x = 63,246,356.69/8,884.50
6. Step 6: Final answer
   x = 7,118.73