Finding the Fourth Proportional to 16,739.87, 23,087.03 and 12,196.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,739.87 : 23,087.03 = 12,196.37 : x
2. Step 2: Convert to fraction form
   16,739.87/23,087.03 = 12,196.37/x
3. Step 3: Cross multiply
   16,739.87x = 23,087.03 × 12,196.37
4. Step 4: Simplify right side
   16,739.87x = 281,577,956.82
5. Step 5: Solve for x
   x = 281,577,956.82/16,739.87
6. Step 6: Final answer
   x = 16,820.80