Finding the Fourth Proportional to 118,995.74, 164,224.49 and 65,291.25

Step by Step Solution

1. Step 1: Write the proportion equation
   118,995.74 : 164,224.49 = 65,291.25 : x
2. Step 2: Convert to fraction form
   118,995.74/164,224.49 = 65,291.25/x
3. Step 3: Cross multiply
   118,995.74x = 164,224.49 × 65,291.25
4. Step 4: Simplify right side
   118,995.74x = 10,722,422,806.50
5. Step 5: Solve for x
   x = 10,722,422,806.50/118,995.74
6. Step 6: Final answer
   x = 90,107.62