Finding the Fourth Proportional to 118,965.52, 164,171.29 and 65,250.75

Step by Step Solution

1. Step 1: Write the proportion equation
   118,965.52 : 164,171.29 = 65,250.75 : x
2. Step 2: Convert to fraction form
   118,965.52/164,171.29 = 65,250.75/x
3. Step 3: Cross multiply
   118,965.52x = 164,171.29 × 65,250.75
4. Step 4: Simplify right side
   118,965.52x = 10,712,300,420.24
5. Step 5: Solve for x
   x = 10,712,300,420.24/118,965.52
6. Step 6: Final answer
   x = 90,045.42