Finding the Fourth Proportional to 14,100.99, 21,158.38 and 9,967.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,100.99 : 21,158.38 = 9,967.56 : x
2. Step 2: Convert to fraction form
   14,100.99/21,158.38 = 9,967.56/x
3. Step 3: Cross multiply
   14,100.99x = 21,158.38 × 9,967.56
4. Step 4: Simplify right side
   14,100.99x = 210,897,355.27
5. Step 5: Solve for x
   x = 210,897,355.27/14,100.99
6. Step 6: Final answer
   x = 14,956.21