Finding the Fourth Proportional to 111,779.92, 154,150.84 and 73,471.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,779.92 : 154,150.84 = 73,471.78 : x
2. Step 2: Convert to fraction form
   111,779.92/154,150.84 = 73,471.78/x
3. Step 3: Cross multiply
   111,779.92x = 154,150.84 × 73,471.78
4. Step 4: Simplify right side
   111,779.92x = 11,325,736,603.30
5. Step 5: Solve for x
   x = 11,325,736,603.30/111,779.92
6. Step 6: Final answer
   x = 101,321.75