Finding the Fourth Proportional to 14,942.72, 22,417.32 and 9,403.40

Step by Step Solution

1. Step 1: Write the proportion equation
   14,942.72 : 22,417.32 = 9,403.40 : x
2. Step 2: Convert to fraction form
   14,942.72/22,417.32 = 9,403.40/x
3. Step 3: Cross multiply
   14,942.72x = 22,417.32 × 9,403.40
4. Step 4: Simplify right side
   14,942.72x = 210,799,026.89
5. Step 5: Solve for x
   x = 210,799,026.89/14,942.72
6. Step 6: Final answer
   x = 14,107.14