Finding the Fourth Proportional to 118,952.88, 164,139.98 and 65,223.75

Step by Step Solution

1. Step 1: Write the proportion equation
   118,952.88 : 164,139.98 = 65,223.75 : x
2. Step 2: Convert to fraction form
   118,952.88/164,139.98 = 65,223.75/x
3. Step 3: Cross multiply
   118,952.88x = 164,139.98 × 65,223.75
4. Step 4: Simplify right side
   118,952.88x = 10,705,825,020.53
5. Step 5: Solve for x
   x = 10,705,825,020.53/118,952.88
6. Step 6: Final answer
   x = 90,000.55