Finding the Fourth Proportional to 116,947.24, 161,517.78 and 79,155.88

Step by Step Solution

1. Step 1: Write the proportion equation
   116,947.24 : 161,517.78 = 79,155.88 : x
2. Step 2: Convert to fraction form
   116,947.24/161,517.78 = 79,155.88/x
3. Step 3: Cross multiply
   116,947.24x = 161,517.78 × 79,155.88
4. Step 4: Simplify right side
   116,947.24x = 12,785,082,011.55
5. Step 5: Solve for x
   x = 12,785,082,011.55/116,947.24
6. Step 6: Final answer
   x = 109,323.50