Finding the Fourth Proportional to 109,049.89, 150,496.77 and 66,616.42

Step by Step Solution

1. Step 1: Write the proportion equation
   109,049.89 : 150,496.77 = 66,616.42 : x
2. Step 2: Convert to fraction form
   109,049.89/150,496.77 = 66,616.42/x
3. Step 3: Cross multiply
   109,049.89x = 150,496.77 × 66,616.42
4. Step 4: Simplify right side
   109,049.89x = 10,025,556,038.96
5. Step 5: Solve for x
   x = 10,025,556,038.96/109,049.89
6. Step 6: Final answer
   x = 91,935.50