Finding the Fourth Proportional to 162,255.06, 243,382.79 and 42,311.91

Step by Step Solution

1. Step 1: Write the proportion equation
   162,255.06 : 243,382.79 = 42,311.91 : x
2. Step 2: Convert to fraction form
   162,255.06/243,382.79 = 42,311.91/x
3. Step 3: Cross multiply
   162,255.06x = 243,382.79 × 42,311.91
4. Step 4: Simplify right side
   162,255.06x = 10,297,990,494.47
5. Step 5: Solve for x
   x = 10,297,990,494.47/162,255.06
6. Step 6: Final answer
   x = 63,467.92