Finding the Fourth Proportional to 14,429.53, 19,906.72 and 9,715.33

Step by Step Solution

1. Step 1: Write the proportion equation
   14,429.53 : 19,906.72 = 9,715.33 : x
2. Step 2: Convert to fraction form
   14,429.53/19,906.72 = 9,715.33/x
3. Step 3: Cross multiply
   14,429.53x = 19,906.72 × 9,715.33
4. Step 4: Simplify right side
   14,429.53x = 193,400,354.02
5. Step 5: Solve for x
   x = 193,400,354.02/14,429.53
6. Step 6: Final answer
   x = 13,403.09