Finding the Fourth Proportional to 118,925.88, 164,102.65 and 65,196.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,925.88 : 164,102.65 = 65,196.78 : x
2. Step 2: Convert to fraction form
   118,925.88/164,102.65 = 65,196.78/x
3. Step 3: Cross multiply
   118,925.88x = 164,102.65 × 65,196.78
4. Step 4: Simplify right side
   118,925.88x = 10,698,964,369.47
5. Step 5: Solve for x
   x = 10,698,964,369.47/118,925.88
6. Step 6: Final answer
   x = 89,963.30