Finding the Fourth Proportional to 13,184.37, 19,738.89 and 12,150.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,184.37 : 19,738.89 = 12,150.81 : x
2. Step 2: Convert to fraction form
   13,184.37/19,738.89 = 12,150.81/x
3. Step 3: Cross multiply
   13,184.37x = 19,738.89 × 12,150.81
4. Step 4: Simplify right side
   13,184.37x = 239,843,502.00
5. Step 5: Solve for x
   x = 239,843,502.00/13,184.37
6. Step 6: Final answer
   x = 18,191.50