Finding the Fourth Proportional to 24,498.78, 33,808.32 and 13,320.78

Step by Step Solution

1. Step 1: Write the proportion equation
   24,498.78 : 33,808.32 = 13,320.78 : x
2. Step 2: Convert to fraction form
   24,498.78/33,808.32 = 13,320.78/x
3. Step 3: Cross multiply
   24,498.78x = 33,808.32 × 13,320.78
4. Step 4: Simplify right side
   24,498.78x = 450,353,192.89
5. Step 5: Solve for x
   x = 450,353,192.89/24,498.78
6. Step 6: Final answer
   x = 18,382.68