Finding the Fourth Proportional to 118,731.36, 163,853.52 and 65,016.84

Step by Step Solution

1. Step 1: Write the proportion equation
   118,731.36 : 163,853.52 = 65,016.84 : x
2. Step 2: Convert to fraction form
   118,731.36/163,853.52 = 65,016.84/x
3. Step 3: Cross multiply
   118,731.36x = 163,853.52 × 65,016.84
4. Step 4: Simplify right side
   118,731.36x = 10,653,238,093.28
5. Step 5: Solve for x
   x = 10,653,238,093.28/118,731.36
6. Step 6: Final answer
   x = 89,725.56