Finding the Fourth Proportional to 48,039.29, 72,057.37 and 21,744.05

Step by Step Solution

1. Step 1: Write the proportion equation
   48,039.29 : 72,057.37 = 21,744.05 : x
2. Step 2: Convert to fraction form
   48,039.29/72,057.37 = 21,744.05/x
3. Step 3: Cross multiply
   48,039.29x = 72,057.37 × 21,744.05
4. Step 4: Simplify right side
   48,039.29x = 1,566,819,056.15
5. Step 5: Solve for x
   x = 1,566,819,056.15/48,039.29
6. Step 6: Final answer
   x = 32,615.37