Finding the Fourth Proportional to 16,859.41, 25,271.32 and 5,611.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,859.41 : 25,271.32 = 5,611.72 : x
2. Step 2: Convert to fraction form
   16,859.41/25,271.32 = 5,611.72/x
3. Step 3: Cross multiply
   16,859.41x = 25,271.32 × 5,611.72
4. Step 4: Simplify right side
   16,859.41x = 141,815,494.66
5. Step 5: Solve for x
   x = 141,815,494.66/16,859.41
6. Step 6: Final answer
   x = 8,411.65