Finding the Fourth Proportional to 16,607.58, 22,913.56 and 9,889.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,607.58 : 22,913.56 = 9,889.86 : x
2. Step 2: Convert to fraction form
   16,607.58/22,913.56 = 9,889.86/x
3. Step 3: Cross multiply
   16,607.58x = 22,913.56 × 9,889.86
4. Step 4: Simplify right side
   16,607.58x = 226,611,900.50
5. Step 5: Solve for x
   x = 226,611,900.50/16,607.58
6. Step 6: Final answer
   x = 13,645.09