Finding the Fourth Proportional to 118,947.59, 164,149.91 and 65,229.39

Step by Step Solution

1. Step 1: Write the proportion equation
   118,947.59 : 164,149.91 = 65,229.39 : x
2. Step 2: Convert to fraction form
   118,947.59/164,149.91 = 65,229.39/x
3. Step 3: Cross multiply
   118,947.59x = 164,149.91 × 65,229.39
4. Step 4: Simplify right side
   118,947.59x = 10,707,398,171.71
5. Step 5: Solve for x
   x = 10,707,398,171.71/118,947.59
6. Step 6: Final answer
   x = 90,017.79