Finding the Fourth Proportional to 116,958.08, 161,393.76 and 65,972.48

Step by Step Solution

1. Step 1: Write the proportion equation
   116,958.08 : 161,393.76 = 65,972.48 : x
2. Step 2: Convert to fraction form
   116,958.08/161,393.76 = 65,972.48/x
3. Step 3: Cross multiply
   116,958.08x = 161,393.76 × 65,972.48
4. Step 4: Simplify right side
   116,958.08x = 10,647,546,603.72
5. Step 5: Solve for x
   x = 10,647,546,603.72/116,958.08
6. Step 6: Final answer
   x = 91,037.29