Finding the Fourth Proportional to 33,040.42, 45,633.60 and 21,760.34

Step by Step Solution

1. Step 1: Write the proportion equation
   33,040.42 : 45,633.60 = 21,760.34 : x
2. Step 2: Convert to fraction form
   33,040.42/45,633.60 = 21,760.34/x
3. Step 3: Cross multiply
   33,040.42x = 45,633.60 × 21,760.34
4. Step 4: Simplify right side
   33,040.42x = 993,002,423.26
5. Step 5: Solve for x
   x = 993,002,423.26/33,040.42
6. Step 6: Final answer
   x = 30,054.17