Finding the Fourth Proportional to 162,105.63, 243,165.39 and 49,790.32

Step by Step Solution

1. Step 1: Write the proportion equation
   162,105.63 : 243,165.39 = 49,790.32 : x
2. Step 2: Convert to fraction form
   162,105.63/243,165.39 = 49,790.32/x
3. Step 3: Cross multiply
   162,105.63x = 243,165.39 × 49,790.32
4. Step 4: Simplify right side
   162,105.63x = 12,107,282,581.02
5. Step 5: Solve for x
   x = 12,107,282,581.02/162,105.63
6. Step 6: Final answer
   x = 74,687.61