Finding the Fourth Proportional to 118,929.90, 164,122.83 and 65,213.55

Step by Step Solution

1. Step 1: Write the proportion equation
   118,929.90 : 164,122.83 = 65,213.55 : x
2. Step 2: Convert to fraction form
   118,929.90/164,122.83 = 65,213.55/x
3. Step 3: Cross multiply
   118,929.90x = 164,122.83 × 65,213.55
4. Step 4: Simplify right side
   118,929.90x = 10,703,032,380.35
5. Step 5: Solve for x
   x = 10,703,032,380.35/118,929.90
6. Step 6: Final answer
   x = 89,994.46