Finding the Fourth Proportional to 16,172.91, 22,321.94 and 10,499.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,172.91 : 22,321.94 = 10,499.76 : x
2. Step 2: Convert to fraction form
   16,172.91/22,321.94 = 10,499.76/x
3. Step 3: Cross multiply
   16,172.91x = 22,321.94 × 10,499.76
4. Step 4: Simplify right side
   16,172.91x = 234,374,960.24
5. Step 5: Solve for x
   x = 234,374,960.24/16,172.91
6. Step 6: Final answer
   x = 14,491.82