Finding the Fourth Proportional to 116,703.18, 161,048.82 and 65,720.91

Step by Step Solution

1. Step 1: Write the proportion equation
   116,703.18 : 161,048.82 = 65,720.91 : x
2. Step 2: Convert to fraction form
   116,703.18/161,048.82 = 65,720.91/x
3. Step 3: Cross multiply
   116,703.18x = 161,048.82 × 65,720.91
4. Step 4: Simplify right side
   116,703.18x = 10,584,275,004.83
5. Step 5: Solve for x
   x = 10,584,275,004.83/116,703.18
6. Step 6: Final answer
   x = 90,693.97