Finding the Fourth Proportional to 116,843.27, 161,243.69 and 63,128.25

Step by Step Solution

1. Step 1: Write the proportion equation
   116,843.27 : 161,243.69 = 63,128.25 : x
2. Step 2: Convert to fraction form
   116,843.27/161,243.69 = 63,128.25/x
3. Step 3: Cross multiply
   116,843.27x = 161,243.69 × 63,128.25
4. Step 4: Simplify right side
   116,843.27x = 10,179,031,657.60
5. Step 5: Solve for x
   x = 10,179,031,657.60/116,843.27
6. Step 6: Final answer
   x = 87,116.97