Finding the Fourth Proportional to 151,443.28, 227,164.31 and 56,680.57

Step by Step Solution

1. Step 1: Write the proportion equation
   151,443.28 : 227,164.31 = 56,680.57 : x
2. Step 2: Convert to fraction form
   151,443.28/227,164.31 = 56,680.57/x
3. Step 3: Cross multiply
   151,443.28x = 227,164.31 × 56,680.57
4. Step 4: Simplify right side
   151,443.28x = 12,875,803,000.11
5. Step 5: Solve for x
   x = 12,875,803,000.11/151,443.28
6. Step 6: Final answer
   x = 85,020.63