Finding the Fourth Proportional to 116,773.38, 161,147.76 and 65,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   116,773.38 : 161,147.76 = 65,786.72 : x
2. Step 2: Convert to fraction form
   116,773.38/161,147.76 = 65,786.72/x
3. Step 3: Cross multiply
   116,773.38x = 161,147.76 × 65,786.72
4. Step 4: Simplify right side
   116,773.38x = 10,601,383,215.32
5. Step 5: Solve for x
   x = 10,601,383,215.32/116,773.38
6. Step 6: Final answer
   x = 90,785.96