Finding the Fourth Proportional to 108,111.10, 161,777.85 and 73,119.10

Step by Step Solution

1. Step 1: Write the proportion equation
   108,111.10 : 161,777.85 = 73,119.10 : x
2. Step 2: Convert to fraction form
   108,111.10/161,777.85 = 73,119.10/x
3. Step 3: Cross multiply
   108,111.10x = 161,777.85 × 73,119.10
4. Step 4: Simplify right side
   108,111.10x = 11,829,050,791.94
5. Step 5: Solve for x
   x = 11,829,050,791.94/108,111.10
6. Step 6: Final answer
   x = 109,415.69