Finding the Fourth Proportional to 33,088.31, 49,641.74 and 13,380.71

Step by Step Solution

1. Step 1: Write the proportion equation
   33,088.31 : 49,641.74 = 13,380.71 : x
2. Step 2: Convert to fraction form
   33,088.31/49,641.74 = 13,380.71/x
3. Step 3: Cross multiply
   33,088.31x = 49,641.74 × 13,380.71
4. Step 4: Simplify right side
   33,088.31x = 664,241,703.50
5. Step 5: Solve for x
   x = 664,241,703.50/33,088.31
6. Step 6: Final answer
   x = 20,074.81