Finding the Fourth Proportional to 30,760, 42,448.80 and 17,514.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,760 : 42,448.80 = 17,514.56 : x
2. Step 2: Convert to fraction form
   30,760/42,448.80 = 17,514.56/x
3. Step 3: Cross multiply
   30,760x = 42,448.80 × 17,514.56
4. Step 4: Simplify right side
   30,760x = 743,472,054.53
5. Step 5: Solve for x
   x = 743,472,054.53/30,760
6. Step 6: Final answer
   x = 24,170.09