Finding the Fourth Proportional to 118,791.96, 163,934.72 and 65,082.07

Step by Step Solution

1. Step 1: Write the proportion equation
   118,791.96 : 163,934.72 = 65,082.07 : x
2. Step 2: Convert to fraction form
   118,791.96/163,934.72 = 65,082.07/x
3. Step 3: Cross multiply
   118,791.96x = 163,934.72 × 65,082.07
4. Step 4: Simplify right side
   118,791.96x = 10,669,210,922.47
5. Step 5: Solve for x
   x = 10,669,210,922.47/118,791.96
6. Step 6: Final answer
   x = 89,814.25