Finding the Fourth Proportional to 72,974.72, 109,478.49 and 23,057.81

Step by Step Solution

1. Step 1: Write the proportion equation
   72,974.72 : 109,478.49 = 23,057.81 : x
2. Step 2: Convert to fraction form
   72,974.72/109,478.49 = 23,057.81/x
3. Step 3: Cross multiply
   72,974.72x = 109,478.49 × 23,057.81
4. Step 4: Simplify right side
   72,974.72x = 2,524,334,614.01
5. Step 5: Solve for x
   x = 2,524,334,614.01/72,974.72
6. Step 6: Final answer
   x = 34,591.90