Finding the Fourth Proportional to 10,434.96, 15,640.56 and 5,510.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.96 : 15,640.56 = 5,510.16 : x
2. Step 2: Convert to fraction form
   10,434.96/15,640.56 = 5,510.16/x
3. Step 3: Cross multiply
   10,434.96x = 15,640.56 × 5,510.16
4. Step 4: Simplify right side
   10,434.96x = 86,181,988.09
5. Step 5: Solve for x
   x = 86,181,988.09/10,434.96
6. Step 6: Final answer
   x = 8,258.97