Finding the Fourth Proportional to 32,864.72, 49,320.84 and 13,148.78

Step by Step Solution

1. Step 1: Write the proportion equation
   32,864.72 : 49,320.84 = 13,148.78 : x
2. Step 2: Convert to fraction form
   32,864.72/49,320.84 = 13,148.78/x
3. Step 3: Cross multiply
   32,864.72x = 49,320.84 × 13,148.78
4. Step 4: Simplify right side
   32,864.72x = 648,508,874.58
5. Step 5: Solve for x
   x = 648,508,874.58/32,864.72
6. Step 6: Final answer
   x = 19,732.68