Finding the Fourth Proportional to 118,086.94, 162,951.83 and 66,411.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,086.94 : 162,951.83 = 66,411.78 : x
2. Step 2: Convert to fraction form
   118,086.94/162,951.83 = 66,411.78/x
3. Step 3: Cross multiply
   118,086.94x = 162,951.83 × 66,411.78
4. Step 4: Simplify right side
   118,086.94x = 10,821,919,937.74
5. Step 5: Solve for x
   x = 10,821,919,937.74/118,086.94
6. Step 6: Final answer
   x = 91,643.66