Finding the Fourth Proportional to 15,837.16, 23,748.72 and 8,440.24

Step by Step Solution

1. Step 1: Write the proportion equation
   15,837.16 : 23,748.72 = 8,440.24 : x
2. Step 2: Convert to fraction form
   15,837.16/23,748.72 = 8,440.24/x
3. Step 3: Cross multiply
   15,837.16x = 23,748.72 × 8,440.24
4. Step 4: Simplify right side
   15,837.16x = 200,444,896.49
5. Step 5: Solve for x
   x = 200,444,896.49/15,837.16
6. Step 6: Final answer
   x = 12,656.62