Finding the Fourth Proportional to 17,040.72, 23,511.24 and 9,870.16

Step by Step Solution

1. Step 1: Write the proportion equation
   17,040.72 : 23,511.24 = 9,870.16 : x
2. Step 2: Convert to fraction form
   17,040.72/23,511.24 = 9,870.16/x
3. Step 3: Cross multiply
   17,040.72x = 23,511.24 × 9,870.16
4. Step 4: Simplify right side
   17,040.72x = 232,059,700.60
5. Step 5: Solve for x
   x = 232,059,700.60/17,040.72
6. Step 6: Final answer
   x = 13,617.95