Finding the Fourth Proportional to 118,878.29, 164,051.27 and 65,165.57

Step by Step Solution

1. Step 1: Write the proportion equation
   118,878.29 : 164,051.27 = 65,165.57 : x
2. Step 2: Convert to fraction form
   118,878.29/164,051.27 = 65,165.57/x
3. Step 3: Cross multiply
   118,878.29x = 164,051.27 × 65,165.57
4. Step 4: Simplify right side
   118,878.29x = 10,690,494,603.07
5. Step 5: Solve for x
   x = 10,690,494,603.07/118,878.29
6. Step 6: Final answer
   x = 89,928.06