Finding the Fourth Proportional to 30,564.67, 42,178.83 and 17,135.89

Step by Step Solution

1. Step 1: Write the proportion equation
   30,564.67 : 42,178.83 = 17,135.89 : x
2. Step 2: Convert to fraction form
   30,564.67/42,178.83 = 17,135.89/x
3. Step 3: Cross multiply
   30,564.67x = 42,178.83 × 17,135.89
4. Step 4: Simplify right side
   30,564.67x = 722,771,791.21
5. Step 5: Solve for x
   x = 722,771,791.21/30,564.67
6. Step 6: Final answer
   x = 23,647.30