Finding the Fourth Proportional to 13,019.86, 19,525.92 and 5,523.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.86 : 19,525.92 = 5,523.31 : x
2. Step 2: Convert to fraction form
   13,019.86/19,525.92 = 5,523.31/x
3. Step 3: Cross multiply
   13,019.86x = 19,525.92 × 5,523.31
4. Step 4: Simplify right side
   13,019.86x = 107,847,709.20
5. Step 5: Solve for x
   x = 107,847,709.20/13,019.86
6. Step 6: Final answer
   x = 8,283.32