Finding the Fourth Proportional to 111,067.05, 153,113.11 and 79,180.59

Step by Step Solution

1. Step 1: Write the proportion equation
   111,067.05 : 153,113.11 = 79,180.59 : x
2. Step 2: Convert to fraction form
   111,067.05/153,113.11 = 79,180.59/x
3. Step 3: Cross multiply
   111,067.05x = 153,113.11 × 79,180.59
4. Step 4: Simplify right side
   111,067.05x = 12,123,586,116.81
5. Step 5: Solve for x
   x = 12,123,586,116.81/111,067.05
6. Step 6: Final answer
   x = 109,155.56