Finding the Fourth Proportional to 162,157.58, 243,385.86 and 82,251.62

Step by Step Solution

1. Step 1: Write the proportion equation
   162,157.58 : 243,385.86 = 82,251.62 : x
2. Step 2: Convert to fraction form
   162,157.58/243,385.86 = 82,251.62/x
3. Step 3: Cross multiply
   162,157.58x = 243,385.86 × 82,251.62
4. Step 4: Simplify right side
   162,157.58x = 20,018,881,274.30
5. Step 5: Solve for x
   x = 20,018,881,274.30/162,157.58
6. Step 6: Final answer
   x = 123,453.26