Finding the Fourth Proportional to 12,435.48, 18,653.24 and 3,669.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,435.48 : 18,653.24 = 3,669.72 : x
2. Step 2: Convert to fraction form
   12,435.48/18,653.24 = 3,669.72/x
3. Step 3: Cross multiply
   12,435.48x = 18,653.24 × 3,669.72
4. Step 4: Simplify right side
   12,435.48x = 68,452,167.89
5. Step 5: Solve for x
   x = 68,452,167.89/12,435.48
6. Step 6: Final answer
   x = 5,504.59