Finding the Fourth Proportional to 30,584.72, 45,874.56 and 21,663.20

Step by Step Solution

1. Step 1: Write the proportion equation
   30,584.72 : 45,874.56 = 21,663.20 : x
2. Step 2: Convert to fraction form
   30,584.72/45,874.56 = 21,663.20/x
3. Step 3: Cross multiply
   30,584.72x = 45,874.56 × 21,663.20
4. Step 4: Simplify right side
   30,584.72x = 993,789,768.19
5. Step 5: Solve for x
   x = 993,789,768.19/30,584.72
6. Step 6: Final answer
   x = 32,493.02