Finding the Fourth Proportional to 33,066.80, 45,605.78 and 21,747.91

Step by Step Solution

1. Step 1: Write the proportion equation
   33,066.80 : 45,605.78 = 21,747.91 : x
2. Step 2: Convert to fraction form
   33,066.80/45,605.78 = 21,747.91/x
3. Step 3: Cross multiply
   33,066.80x = 45,605.78 × 21,747.91
4. Step 4: Simplify right side
   33,066.80x = 991,830,465.56
5. Step 5: Solve for x
   x = 991,830,465.56/33,066.80
6. Step 6: Final answer
   x = 29,994.75