Finding the Fourth Proportional to 111,779.30, 154,149.98 and 73,471.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111,779.30 : 154,149.98 = 73,471.16 : x
2. Step 2: Convert to fraction form
   111,779.30/154,149.98 = 73,471.16/x
3. Step 3: Cross multiply
   111,779.30x = 154,149.98 × 73,471.16
4. Step 4: Simplify right side
   111,779.30x = 11,325,577,257.50
5. Step 5: Solve for x
   x = 11,325,577,257.50/111,779.30
6. Step 6: Final answer
   x = 101,320.89