Finding the Fourth Proportional to 38,944.89, 53,743.98 and 21,039.89

Step by Step Solution

1. Step 1: Write the proportion equation
   38,944.89 : 53,743.98 = 21,039.89 : x
2. Step 2: Convert to fraction form
   38,944.89/53,743.98 = 21,039.89/x
3. Step 3: Cross multiply
   38,944.89x = 53,743.98 × 21,039.89
4. Step 4: Simplify right side
   38,944.89x = 1,130,767,561.72
5. Step 5: Solve for x
   x = 1,130,767,561.72/38,944.89
6. Step 6: Final answer
   x = 29,035.07