Finding the Fourth Proportional to 118,672.41, 163,768.10 and 64,960.82

Step by Step Solution

1. Step 1: Write the proportion equation
   118,672.41 : 163,768.10 = 64,960.82 : x
2. Step 2: Convert to fraction form
   118,672.41/163,768.10 = 64,960.82/x
3. Step 3: Cross multiply
   118,672.41x = 163,768.10 × 64,960.82
4. Step 4: Simplify right side
   118,672.41x = 10,638,510,065.84
5. Step 5: Solve for x
   x = 10,638,510,065.84/118,672.41
6. Step 6: Final answer
   x = 89,646.03