Finding the Fourth Proportional to 118,901.89, 164,084.55 and 65,185.75

Step by Step Solution

1. Step 1: Write the proportion equation
   118,901.89 : 164,084.55 = 65,185.75 : x
2. Step 2: Convert to fraction form
   118,901.89/164,084.55 = 65,185.75/x
3. Step 3: Cross multiply
   118,901.89x = 164,084.55 × 65,185.75
4. Step 4: Simplify right side
   118,901.89x = 10,695,974,455.16
5. Step 5: Solve for x
   x = 10,695,974,455.16/118,901.89
6. Step 6: Final answer
   x = 89,956.30