Finding the Fourth Proportional to 16,772.21, 25,156.77 and 5,677.63

Step by Step Solution

1. Step 1: Write the proportion equation
   16,772.21 : 25,156.77 = 5,677.63 : x
2. Step 2: Convert to fraction form
   16,772.21/25,156.77 = 5,677.63/x
3. Step 3: Cross multiply
   16,772.21x = 25,156.77 × 5,677.63
4. Step 4: Simplify right side
   16,772.21x = 142,830,677.88
5. Step 5: Solve for x
   x = 142,830,677.88/16,772.21
6. Step 6: Final answer
   x = 8,515.92