Finding the Fourth Proportional to 118,026.30, 162,780.39 and 108,186.42

Step by Step Solution

1. Step 1: Write the proportion equation
   118,026.30 : 162,780.39 = 108,186.42 : x
2. Step 2: Convert to fraction form
   118,026.30/162,780.39 = 108,186.42/x
3. Step 3: Cross multiply
   118,026.30x = 162,780.39 × 108,186.42
4. Step 4: Simplify right side
   118,026.30x = 17,610,627,640.30
5. Step 5: Solve for x
   x = 17,610,627,640.30/118,026.30
6. Step 6: Final answer
   x = 149,209.35