Finding the Fourth Proportional to 162,118.46, 243,128.28 and 56,912.42

Step by Step Solution

1. Step 1: Write the proportion equation
   162,118.46 : 243,128.28 = 56,912.42 : x
2. Step 2: Convert to fraction form
   162,118.46/243,128.28 = 56,912.42/x
3. Step 3: Cross multiply
   162,118.46x = 243,128.28 × 56,912.42
4. Step 4: Simplify right side
   162,118.46x = 13,837,018,785.24
5. Step 5: Solve for x
   x = 13,837,018,785.24/162,118.46
6. Step 6: Final answer
   x = 85,351.28