Finding the Fourth Proportional to 118,781.96, 163,919.15 and 65,068.91

Step by Step Solution

1. Step 1: Write the proportion equation
   118,781.96 : 163,919.15 = 65,068.91 : x
2. Step 2: Convert to fraction form
   118,781.96/163,919.15 = 65,068.91/x
3. Step 3: Cross multiply
   118,781.96x = 163,919.15 × 65,068.91
4. Step 4: Simplify right side
   118,781.96x = 10,666,040,747.09
5. Step 5: Solve for x
   x = 10,666,040,747.09/118,781.96
6. Step 6: Final answer
   x = 89,795.12