Finding the Fourth Proportional to 33,991.17, 50,877.57 and 18,156.61

Step by Step Solution

1. Step 1: Write the proportion equation
   33,991.17 : 50,877.57 = 18,156.61 : x
2. Step 2: Convert to fraction form
   33,991.17/50,877.57 = 18,156.61/x
3. Step 3: Cross multiply
   33,991.17x = 50,877.57 × 18,156.61
4. Step 4: Simplify right side
   33,991.17x = 923,763,998.59
5. Step 5: Solve for x
   x = 923,763,998.59/33,991.17
6. Step 6: Final answer
   x = 27,176.59