Finding the Fourth Proportional to 17,042.40, 23,513.92 and 9,970.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,042.40 : 23,513.92 = 9,970.56 : x
2. Step 2: Convert to fraction form
   17,042.40/23,513.92 = 9,970.56/x
3. Step 3: Cross multiply
   17,042.40x = 23,513.92 × 9,970.56
4. Step 4: Simplify right side
   17,042.40x = 234,446,950.20
5. Step 5: Solve for x
   x = 234,446,950.20/17,042.40
6. Step 6: Final answer
   x = 13,756.69