Finding the Fourth Proportional to 162,162.58, 243,393.36 and 82,256.62

Step by Step Solution

1. Step 1: Write the proportion equation
   162,162.58 : 243,393.36 = 82,256.62 : x
2. Step 2: Convert to fraction form
   162,162.58/243,393.36 = 82,256.62/x
3. Step 3: Cross multiply
   162,162.58x = 243,393.36 × 82,256.62
4. Step 4: Simplify right side
   162,162.58x = 20,020,715,124.04
5. Step 5: Solve for x
   x = 20,020,715,124.04/162,162.58
6. Step 6: Final answer
   x = 123,460.76