Finding the Fourth Proportional to 73,596.72, 110,413.71 and 21,006.39

Step by Step Solution

1. Step 1: Write the proportion equation
   73,596.72 : 110,413.71 = 21,006.39 : x
2. Step 2: Convert to fraction form
   73,596.72/110,413.71 = 21,006.39/x
3. Step 3: Cross multiply
   73,596.72x = 110,413.71 × 21,006.39
4. Step 4: Simplify right side
   73,596.72x = 2,319,393,453.61
5. Step 5: Solve for x
   x = 2,319,393,453.61/73,596.72
6. Step 6: Final answer
   x = 31,514.90