Finding the Fourth Proportional to 82,162.10, 123,241.86 and 42,158.00

Step by Step Solution

1. Step 1: Write the proportion equation
   82,162.10 : 123,241.86 = 42,158.00 : x
2. Step 2: Convert to fraction form
   82,162.10/123,241.86 = 42,158.00/x
3. Step 3: Cross multiply
   82,162.10x = 123,241.86 × 42,158.00
4. Step 4: Simplify right side
   82,162.10x = 5,195,629,717.67
5. Step 5: Solve for x
   x = 5,195,629,717.67/82,162.10
6. Step 6: Final answer
   x = 63,236.33