Finding the Fourth Proportional to 33,767.51, 50,653.43 and 12,991.01

Step by Step Solution

1. Step 1: Write the proportion equation
   33,767.51 : 50,653.43 = 12,991.01 : x
2. Step 2: Convert to fraction form
   33,767.51/50,653.43 = 12,991.01/x
3. Step 3: Cross multiply
   33,767.51x = 50,653.43 × 12,991.01
4. Step 4: Simplify right side
   33,767.51x = 658,039,150.71
5. Step 5: Solve for x
   x = 658,039,150.71/33,767.51
6. Step 6: Final answer
   x = 19,487.35