Finding the Fourth Proportional to 106,155.18, 158,740.59 and 82,191.09

Step by Step Solution

1. Step 1: Write the proportion equation
   106,155.18 : 158,740.59 = 82,191.09 : x
2. Step 2: Convert to fraction form
   106,155.18/158,740.59 = 82,191.09/x
3. Step 3: Cross multiply
   106,155.18x = 158,740.59 × 82,191.09
4. Step 4: Simplify right side
   106,155.18x = 13,047,062,119.34
5. Step 5: Solve for x
   x = 13,047,062,119.34/106,155.18
6. Step 6: Final answer
   x = 122,905.56