Finding the Fourth Proportional to 13,016.56, 19,510.26 and 5,216.26

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.56 : 19,510.26 = 5,216.26 : x
2. Step 2: Convert to fraction form
   13,016.56/19,510.26 = 5,216.26/x
3. Step 3: Cross multiply
   13,016.56x = 19,510.26 × 5,216.26
4. Step 4: Simplify right side
   13,016.56x = 101,770,588.83
5. Step 5: Solve for x
   x = 101,770,588.83/13,016.56
6. Step 6: Final answer
   x = 7,818.55