Finding the Fourth Proportional to 116,836.38, 161,234.28 and 63,121.37

Step by Step Solution

1. Step 1: Write the proportion equation
   116,836.38 : 161,234.28 = 63,121.37 : x
2. Step 2: Convert to fraction form
   116,836.38/161,234.28 = 63,121.37/x
3. Step 3: Cross multiply
   116,836.38x = 161,234.28 × 63,121.37
4. Step 4: Simplify right side
   116,836.38x = 10,177,327,838.39
5. Step 5: Solve for x
   x = 10,177,327,838.39/116,836.38
6. Step 6: Final answer
   x = 87,107.52