Finding the Fourth Proportional to 116,952.53, 161,394.28 and 65,965.10

Step by Step Solution

1. Step 1: Write the proportion equation
   116,952.53 : 161,394.28 = 65,965.10 : x
2. Step 2: Convert to fraction form
   116,952.53/161,394.28 = 65,965.10/x
3. Step 3: Cross multiply
   116,952.53x = 161,394.28 × 65,965.10
4. Step 4: Simplify right side
   116,952.53x = 10,646,388,847.74
5. Step 5: Solve for x
   x = 10,646,388,847.74/116,952.53
6. Step 6: Final answer
   x = 91,031.71