Finding the Fourth Proportional to 136,622.98, 188,507.52 and 82,906.72

Step by Step Solution

1. Step 1: Write the proportion equation
   136,622.98 : 188,507.52 = 82,906.72 : x
2. Step 2: Convert to fraction form
   136,622.98/188,507.52 = 82,906.72/x
3. Step 3: Cross multiply
   136,622.98x = 188,507.52 × 82,906.72
4. Step 4: Simplify right side
   136,622.98x = 15,628,540,178.53
5. Step 5: Solve for x
   x = 15,628,540,178.53/136,622.98
6. Step 6: Final answer
   x = 114,391.74