Finding the Fourth Proportional to 118,960.84, 164,164.56 and 64,512.16

Step by Step Solution

1. Step 1: Write the proportion equation
   118,960.84 : 164,164.56 = 64,512.16 : x
2. Step 2: Convert to fraction form
   118,960.84/164,164.56 = 64,512.16/x
3. Step 3: Cross multiply
   118,960.84x = 164,164.56 × 64,512.16
4. Step 4: Simplify right side
   118,960.84x = 10,590,610,361.05
5. Step 5: Solve for x
   x = 10,590,610,361.05/118,960.84
6. Step 6: Final answer
   x = 89,026.02