Finding the Fourth Proportional to 33,325.59, 49,987.38 and 13,604.31

Step by Step Solution

1. Step 1: Write the proportion equation
   33,325.59 : 49,987.38 = 13,604.31 : x
2. Step 2: Convert to fraction form
   33,325.59/49,987.38 = 13,604.31/x
3. Step 3: Cross multiply
   33,325.59x = 49,987.38 × 13,604.31
4. Step 4: Simplify right side
   33,325.59x = 680,043,813.61
5. Step 5: Solve for x
   x = 680,043,813.61/33,325.59
6. Step 6: Final answer
   x = 20,406.05