Finding the Fourth Proportional to 108,665.75, 149,958.54 and 60,919.09

Step by Step Solution

1. Step 1: Write the proportion equation
   108,665.75 : 149,958.54 = 60,919.09 : x
2. Step 2: Convert to fraction form
   108,665.75/149,958.54 = 60,919.09/x
3. Step 3: Cross multiply
   108,665.75x = 149,958.54 × 60,919.09
4. Step 4: Simplify right side
   108,665.75x = 9,135,337,419.63
5. Step 5: Solve for x
   x = 9,135,337,419.63/108,665.75
6. Step 6: Final answer
   x = 84,068.23