Finding the Fourth Proportional to 33,007.98, 45,546.93 and 21,078.30

Step by Step Solution

1. Step 1: Write the proportion equation
   33,007.98 : 45,546.93 = 21,078.30 : x
2. Step 2: Convert to fraction form
   33,007.98/45,546.93 = 21,078.30/x
3. Step 3: Cross multiply
   33,007.98x = 45,546.93 × 21,078.30
4. Step 4: Simplify right side
   33,007.98x = 960,051,854.62
5. Step 5: Solve for x
   x = 960,051,854.62/33,007.98
6. Step 6: Final answer
   x = 29,085.45