Finding the Fourth Proportional to 118,796.50, 163,939.47 and 65,082.57

Step by Step Solution

1. Step 1: Write the proportion equation
   118,796.50 : 163,939.47 = 65,082.57 : x
2. Step 2: Convert to fraction form
   118,796.50/163,939.47 = 65,082.57/x
3. Step 3: Cross multiply
   118,796.50x = 163,939.47 × 65,082.57
4. Step 4: Simplify right side
   118,796.50x = 10,669,602,032.04
5. Step 5: Solve for x
   x = 10,669,602,032.04/118,796.50
6. Step 6: Final answer
   x = 89,814.11