Finding the Fourth Proportional to 33,230.16, 49,917.60 and 20,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,230.16 : 49,917.60 = 20,088.72 : x
2. Step 2: Convert to fraction form
   33,230.16/49,917.60 = 20,088.72/x
3. Step 3: Cross multiply
   33,230.16x = 49,917.60 × 20,088.72
4. Step 4: Simplify right side
   33,230.16x = 1,002,780,689.47
5. Step 5: Solve for x
   x = 1,002,780,689.47/33,230.16
6. Step 6: Final answer
   x = 30,176.82