Finding the Fourth Proportional to 54,388.72, 81,573.32 and 14,940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   54,388.72 : 81,573.32 = 14,940.72 : x
2. Step 2: Convert to fraction form
   54,388.72/81,573.32 = 14,940.72/x
3. Step 3: Cross multiply
   54,388.72x = 81,573.32 × 14,940.72
4. Step 4: Simplify right side
   54,388.72x = 1,218,764,133.59
5. Step 5: Solve for x
   x = 1,218,764,133.59/54,388.72
6. Step 6: Final answer
   x = 22,408.40