Finding the Fourth Proportional to 56,861.72, 78,443.81 and 32,974.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,861.72 : 78,443.81 = 32,974.56 : x
2. Step 2: Convert to fraction form
   56,861.72/78,443.81 = 32,974.56/x
3. Step 3: Cross multiply
   56,861.72x = 78,443.81 × 32,974.56
4. Step 4: Simplify right side
   56,861.72x = 2,586,650,078.26
5. Step 5: Solve for x
   x = 2,586,650,078.26/56,861.72
6. Step 6: Final answer
   x = 45,490.18