Finding the Fourth Proportional to 116,210.60, 160,363.88 and 65,218.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,210.60 : 160,363.88 = 65,218.56 : x
2. Step 2: Convert to fraction form
   116,210.60/160,363.88 = 65,218.56/x
3. Step 3: Cross multiply
   116,210.60x = 160,363.88 × 65,218.56
4. Step 4: Simplify right side
   116,210.60x = 10,458,701,003.52
5. Step 5: Solve for x
   x = 10,458,701,003.52/116,210.60
6. Step 6: Final answer
   x = 89,997.83