Finding the Fourth Proportional to 118,962.78, 164,173.23 and 65,250.06

Step by Step Solution

1. Step 1: Write the proportion equation
   118,962.78 : 164,173.23 = 65,250.06 : x
2. Step 2: Convert to fraction form
   118,962.78/164,173.23 = 65,250.06/x
3. Step 3: Cross multiply
   118,962.78x = 164,173.23 × 65,250.06
4. Step 4: Simplify right side
   118,962.78x = 10,712,313,107.89
5. Step 5: Solve for x
   x = 10,712,313,107.89/118,962.78
6. Step 6: Final answer
   x = 90,047.60