Finding the Fourth Proportional to 118,878.30, 164,051.27 and 65,165.58

Step by Step Solution

1. Step 1: Write the proportion equation
   118,878.30 : 164,051.27 = 65,165.58 : x
2. Step 2: Convert to fraction form
   118,878.30/164,051.27 = 65,165.58/x
3. Step 3: Cross multiply
   118,878.30x = 164,051.27 × 65,165.58
4. Step 4: Simplify right side
   118,878.30x = 10,690,495,833.46
5. Step 5: Solve for x
   x = 10,690,495,833.46/118,878.30
6. Step 6: Final answer
   x = 89,928.07