Finding the Fourth Proportional to 30,513.57, 42,107.49 and 17,767.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,513.57 : 42,107.49 = 17,767.12 : x
2. Step 2: Convert to fraction form
   30,513.57/42,107.49 = 17,767.12/x
3. Step 3: Cross multiply
   30,513.57x = 42,107.49 × 17,767.12
4. Step 4: Simplify right side
   30,513.57x = 748,128,827.73
5. Step 5: Solve for x
   x = 748,128,827.73/30,513.57
6. Step 6: Final answer
   x = 24,517.91