Finding the Fourth Proportional to 12,118.84, 18,152.73 and 5,550.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,118.84 : 18,152.73 = 5,550.55 : x
2. Step 2: Convert to fraction form
   12,118.84/18,152.73 = 5,550.55/x
3. Step 3: Cross multiply
   12,118.84x = 18,152.73 × 5,550.55
4. Step 4: Simplify right side
   12,118.84x = 100,757,590.12
5. Step 5: Solve for x
   x = 100,757,590.12/12,118.84
6. Step 6: Final answer
   x = 8,314.13