Finding the Fourth Proportional to 108,985.77, 150,401.70 and 65,964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   108,985.77 : 150,401.70 = 65,964.72 : x
2. Step 2: Convert to fraction form
   108,985.77/150,401.70 = 65,964.72/x
3. Step 3: Cross multiply
   108,985.77x = 150,401.70 × 65,964.72
4. Step 4: Simplify right side
   108,985.77x = 9,921,206,028.02
5. Step 5: Solve for x
   x = 9,921,206,028.02/108,985.77
6. Step 6: Final answer
   x = 91,032.12