Finding the Fourth Proportional to 16,721.37, 25,085.91 and 5,627.77

Step by Step Solution

1. Step 1: Write the proportion equation
   16,721.37 : 25,085.91 = 5,627.77 : x
2. Step 2: Convert to fraction form
   16,721.37/25,085.91 = 5,627.77/x
3. Step 3: Cross multiply
   16,721.37x = 25,085.91 × 5,627.77
4. Step 4: Simplify right side
   16,721.37x = 141,177,731.72
5. Step 5: Solve for x
   x = 141,177,731.72/16,721.37
6. Step 6: Final answer
   x = 8,442.95