Finding the Fourth Proportional to 118,131.58, 163,015.67 and 67,137.58

Step by Step Solution

1. Step 1: Write the proportion equation
   118,131.58 : 163,015.67 = 67,137.58 : x
2. Step 2: Convert to fraction form
   118,131.58/163,015.67 = 67,137.58/x
3. Step 3: Cross multiply
   118,131.58x = 163,015.67 × 67,137.58
4. Step 4: Simplify right side
   118,131.58x = 10,944,477,585.88
5. Step 5: Solve for x
   x = 10,944,477,585.88/118,131.58
6. Step 6: Final answer
   x = 92,646.50