Finding the Fourth Proportional to 118,136.32, 163,022.19 and 67,142.31

Step by Step Solution

1. Step 1: Write the proportion equation
   118,136.32 : 163,022.19 = 67,142.31 : x
2. Step 2: Convert to fraction form
   118,136.32/163,022.19 = 67,142.31/x
3. Step 3: Cross multiply
   118,136.32x = 163,022.19 × 67,142.31
4. Step 4: Simplify right side
   118,136.32x = 10,945,686,417.86
5. Step 5: Solve for x
   x = 10,945,686,417.86/118,136.32
6. Step 6: Final answer
   x = 92,653.02