Finding the Fourth Proportional to 201,142.21, 277,545.43 and 116,242.89

Step by Step Solution

1. Step 1: Write the proportion equation
   201,142.21 : 277,545.43 = 116,242.89 : x
2. Step 2: Convert to fraction form
   201,142.21/277,545.43 = 116,242.89/x
3. Step 3: Cross multiply
   201,142.21x = 277,545.43 × 116,242.89
4. Step 4: Simplify right side
   201,142.21x = 32,262,682,308.28
5. Step 5: Solve for x
   x = 32,262,682,308.28/201,142.21
6. Step 6: Final answer
   x = 160,397.37