Finding the Fourth Proportional to 116,955.60, 161,385.17 and 65,969.17

Step by Step Solution

1. Step 1: Write the proportion equation
   116,955.60 : 161,385.17 = 65,969.17 : x
2. Step 2: Convert to fraction form
   116,955.60/161,385.17 = 65,969.17/x
3. Step 3: Cross multiply
   116,955.60x = 161,385.17 × 65,969.17
4. Step 4: Simplify right side
   116,955.60x = 10,646,444,687.86
5. Step 5: Solve for x
   x = 10,646,444,687.86/116,955.60
6. Step 6: Final answer
   x = 91,029.80