Finding the Fourth Proportional to 13,016.51, 19,525.62 and 5,224.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.51 : 19,525.62 = 5,224.31 : x
2. Step 2: Convert to fraction form
   13,016.51/19,525.62 = 5,224.31/x
3. Step 3: Cross multiply
   13,016.51x = 19,525.62 × 5,224.31
4. Step 4: Simplify right side
   13,016.51x = 102,007,891.82
5. Step 5: Solve for x
   x = 102,007,891.82/13,016.51
6. Step 6: Final answer
   x = 7,836.81