Finding the Fourth Proportional to 59,379.48, 89,073.72 and 19,936.80

Step by Step Solution

1. Step 1: Write the proportion equation
   59,379.48 : 89,073.72 = 19,936.80 : x
2. Step 2: Convert to fraction form
   59,379.48/89,073.72 = 19,936.80/x
3. Step 3: Cross multiply
   59,379.48x = 89,073.72 × 19,936.80
4. Step 4: Simplify right side
   59,379.48x = 1,775,844,940.90
5. Step 5: Solve for x
   x = 1,775,844,940.90/59,379.48
6. Step 6: Final answer
   x = 29,906.71