Finding the Fourth Proportional to 30,472.74, 42,061.32 and 17,728.92

Step by Step Solution

1. Step 1: Write the proportion equation
   30,472.74 : 42,061.32 = 17,728.92 : x
2. Step 2: Convert to fraction form
   30,472.74/42,061.32 = 17,728.92/x
3. Step 3: Cross multiply
   30,472.74x = 42,061.32 × 17,728.92
4. Step 4: Simplify right side
   30,472.74x = 745,701,777.37
5. Step 5: Solve for x
   x = 745,701,777.37/30,472.74
6. Step 6: Final answer
   x = 24,471.11