Finding the Fourth Proportional to 14,212.30, 19,610.72 and 8,242.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,212.30 : 19,610.72 = 8,242.72 : x
2. Step 2: Convert to fraction form
   14,212.30/19,610.72 = 8,242.72/x
3. Step 3: Cross multiply
   14,212.30x = 19,610.72 × 8,242.72
4. Step 4: Simplify right side
   14,212.30x = 161,645,673.96
5. Step 5: Solve for x
   x = 161,645,673.96/14,212.30
6. Step 6: Final answer
   x = 11,373.65