Finding the Fourth Proportional to 109,816.10, 164,594.55 and 82,081.70

Step by Step Solution

1. Step 1: Write the proportion equation
   109,816.10 : 164,594.55 = 82,081.70 : x
2. Step 2: Convert to fraction form
   109,816.10/164,594.55 = 82,081.70/x
3. Step 3: Cross multiply
   109,816.10x = 164,594.55 × 82,081.70
4. Step 4: Simplify right side
   109,816.10x = 13,510,200,474.74
5. Step 5: Solve for x
   x = 13,510,200,474.74/109,816.10
6. Step 6: Final answer
   x = 123,025.68