Finding the Fourth Proportional to 118,908, 164,093.76 and 65,193.12

Step by Step Solution

1. Step 1: Write the proportion equation
   118,908 : 164,093.76 = 65,193.12 : x
2. Step 2: Convert to fraction form
   118,908/164,093.76 = 65,193.12/x
3. Step 3: Cross multiply
   118,908x = 164,093.76 × 65,193.12
4. Step 4: Simplify right side
   118,908x = 10,697,784,186.93
5. Step 5: Solve for x
   x = 10,697,784,186.93/118,908
6. Step 6: Final answer
   x = 89,966.90