Finding the Fourth Proportional to 16,607, 22,915.83 and 9,891.71

Step by Step Solution

1. Step 1: Write the proportion equation
   16,607 : 22,915.83 = 9,891.71 : x
2. Step 2: Convert to fraction form
   16,607/22,915.83 = 9,891.71/x
3. Step 3: Cross multiply
   16,607x = 22,915.83 × 9,891.71
4. Step 4: Simplify right side
   16,607x = 226,676,744.77
5. Step 5: Solve for x
   x = 226,676,744.77/16,607
6. Step 6: Final answer
   x = 13,649.47