Finding the Fourth Proportional to 12,104.67, 18,141.30 and 5,436.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,104.67 : 18,141.30 = 5,436.24 : x
2. Step 2: Convert to fraction form
   12,104.67/18,141.30 = 5,436.24/x
3. Step 3: Cross multiply
   12,104.67x = 18,141.30 × 5,436.24
4. Step 4: Simplify right side
   12,104.67x = 98,620,460.71
5. Step 5: Solve for x
   x = 98,620,460.71/12,104.67
6. Step 6: Final answer
   x = 8,147.31