Finding the Fourth Proportional to 116,835.82, 161,233.50 and 63,120.80

Step by Step Solution

1. Step 1: Write the proportion equation
   116,835.82 : 161,233.50 = 63,120.80 : x
2. Step 2: Convert to fraction form
   116,835.82/161,233.50 = 63,120.80/x
3. Step 3: Cross multiply
   116,835.82x = 161,233.50 × 63,120.80
4. Step 4: Simplify right side
   116,835.82x = 10,177,188,146.59
5. Step 5: Solve for x
   x = 10,177,188,146.59/116,835.82
6. Step 6: Final answer
   x = 87,106.75