Finding the Fourth Proportional to 33,987.72, 46,896.82 and 20,557.08

Step by Step Solution

1. Step 1: Write the proportion equation
   33,987.72 : 46,896.82 = 20,557.08 : x
2. Step 2: Convert to fraction form
   33,987.72/46,896.82 = 20,557.08/x
3. Step 3: Cross multiply
   33,987.72x = 46,896.82 × 20,557.08
4. Step 4: Simplify right side
   33,987.72x = 964,061,680.49
5. Step 5: Solve for x
   x = 964,061,680.49/33,987.72
6. Step 6: Final answer
   x = 28,365.00