Finding the Fourth Proportional to 39,093.83, 53,949.56 and 21,188.83

Step by Step Solution

1. Step 1: Write the proportion equation
   39,093.83 : 53,949.56 = 21,188.83 : x
2. Step 2: Convert to fraction form
   39,093.83/53,949.56 = 21,188.83/x
3. Step 3: Cross multiply
   39,093.83x = 53,949.56 × 21,188.83
4. Step 4: Simplify right side
   39,093.83x = 1,143,127,869.68
5. Step 5: Solve for x
   x = 1,143,127,869.68/39,093.83
6. Step 6: Final answer
   x = 29,240.62