Finding the Fourth Proportional to 116,171.50, 160,323.12 and 65,200.36

Step by Step Solution

1. Step 1: Write the proportion equation
   116,171.50 : 160,323.12 = 65,200.36 : x
2. Step 2: Convert to fraction form
   116,171.50/160,323.12 = 65,200.36/x
3. Step 3: Cross multiply
   116,171.50x = 160,323.12 × 65,200.36
4. Step 4: Simplify right side
   116,171.50x = 10,453,125,140.32
5. Step 5: Solve for x
   x = 10,453,125,140.32/116,171.50
6. Step 6: Final answer
   x = 89,980.12