Finding the Fourth Proportional to 39,789.69, 59,688.43 and 14,496.07

Step by Step Solution

1. Step 1: Write the proportion equation
   39,789.69 : 59,688.43 = 14,496.07 : x
2. Step 2: Convert to fraction form
   39,789.69/59,688.43 = 14,496.07/x
3. Step 3: Cross multiply
   39,789.69x = 59,688.43 × 14,496.07
4. Step 4: Simplify right side
   39,789.69x = 865,247,659.47
5. Step 5: Solve for x
   x = 865,247,659.47/39,789.69
6. Step 6: Final answer
   x = 21,745.52