Finding the Fourth Proportional to 33,987.71, 46,904.06 and 20,561.42

Step by Step Solution

1. Step 1: Write the proportion equation
   33,987.71 : 46,904.06 = 20,561.42 : x
2. Step 2: Convert to fraction form
   33,987.71/46,904.06 = 20,561.42/x
3. Step 3: Cross multiply
   33,987.71x = 46,904.06 × 20,561.42
4. Step 4: Simplify right side
   33,987.71x = 964,414,077.37
5. Step 5: Solve for x
   x = 964,414,077.37/33,987.71
6. Step 6: Final answer
   x = 28,375.38