Finding the Fourth Proportional to 118,136.82, 163,022.88 and 67,142.81

Step by Step Solution

1. Step 1: Write the proportion equation
   118,136.82 : 163,022.88 = 67,142.81 : x
2. Step 2: Convert to fraction form
   118,136.82/163,022.88 = 67,142.81/x
3. Step 3: Cross multiply
   118,136.82x = 163,022.88 × 67,142.81
4. Step 4: Simplify right side
   118,136.82x = 10,945,814,257.49
5. Step 5: Solve for x
   x = 10,945,814,257.49/118,136.82
6. Step 6: Final answer
   x = 92,653.71