Finding the Fourth Proportional to 111,060.10, 166,420.05 and 82,847.80

Step by Step Solution

1. Step 1: Write the proportion equation
   111,060.10 : 166,420.05 = 82,847.80 : x
2. Step 2: Convert to fraction form
   111,060.10/166,420.05 = 82,847.80/x
3. Step 3: Cross multiply
   111,060.10x = 166,420.05 × 82,847.80
4. Step 4: Simplify right side
   111,060.10x = 13,787,535,018.39
5. Step 5: Solve for x
   x = 13,787,535,018.39/111,060.10
6. Step 6: Final answer
   x = 124,144.81