Finding the Fourth Proportional to 12,199.67, 18,300.24 and 3,435.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,199.67 : 18,300.24 = 3,435.33 : x
2. Step 2: Convert to fraction form
   12,199.67/18,300.24 = 3,435.33/x
3. Step 3: Cross multiply
   12,199.67x = 18,300.24 × 3,435.33
4. Step 4: Simplify right side
   12,199.67x = 62,867,363.48
5. Step 5: Solve for x
   x = 62,867,363.48/12,199.67
6. Step 6: Final answer
   x = 5,153.20