Finding the Fourth Proportional to 30,992.38, 42,768.58 and 17,564.87

Step by Step Solution

1. Step 1: Write the proportion equation
   30,992.38 : 42,768.58 = 17,564.87 : x
2. Step 2: Convert to fraction form
   30,992.38/42,768.58 = 17,564.87/x
3. Step 3: Cross multiply
   30,992.38x = 42,768.58 × 17,564.87
4. Step 4: Simplify right side
   30,992.38x = 751,224,547.78
5. Step 5: Solve for x
   x = 751,224,547.78/30,992.38
6. Step 6: Final answer
   x = 24,239.01