Finding the Fourth Proportional to 12,100.16, 18,152.51 and 5,436.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.16 : 18,152.51 = 5,436.49 : x
2. Step 2: Convert to fraction form
   12,100.16/18,152.51 = 5,436.49/x
3. Step 3: Cross multiply
   12,100.16x = 18,152.51 × 5,436.49
4. Step 4: Simplify right side
   12,100.16x = 98,685,951.62
5. Step 5: Solve for x
   x = 98,685,951.62/12,100.16
6. Step 6: Final answer
   x = 8,155.76