Finding the Fourth Proportional to 14,112.53, 19,477.82 and 8,143.37

Step by Step Solution

1. Step 1: Write the proportion equation
   14,112.53 : 19,477.82 = 8,143.37 : x
2. Step 2: Convert to fraction form
   14,112.53/19,477.82 = 8,143.37/x
3. Step 3: Cross multiply
   14,112.53x = 19,477.82 × 8,143.37
4. Step 4: Simplify right side
   14,112.53x = 158,615,018.02
5. Step 5: Solve for x
   x = 158,615,018.02/14,112.53
6. Step 6: Final answer
   x = 11,239.31