Finding the Fourth Proportional to 116,777.57, 161,119.71 and 65,772.48

Step by Step Solution

1. Step 1: Write the proportion equation
   116,777.57 : 161,119.71 = 65,772.48 : x
2. Step 2: Convert to fraction form
   116,777.57/161,119.71 = 65,772.48/x
3. Step 3: Cross multiply
   116,777.57x = 161,119.71 × 65,772.48
4. Step 4: Simplify right side
   116,777.57x = 10,597,242,903.58
5. Step 5: Solve for x
   x = 10,597,242,903.58/116,777.57
6. Step 6: Final answer
   x = 90,747.25