Finding the Fourth Proportional to 13,168.83, 19,735.37 and 7,231.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,168.83 : 19,735.37 = 7,231.47 : x
2. Step 2: Convert to fraction form
   13,168.83/19,735.37 = 7,231.47/x
3. Step 3: Cross multiply
   13,168.83x = 19,735.37 × 7,231.47
4. Step 4: Simplify right side
   13,168.83x = 142,715,699.94
5. Step 5: Solve for x
   x = 142,715,699.94/13,168.83
6. Step 6: Final answer
   x = 10,837.39