Finding the Fourth Proportional to 14,429.51, 19,909.28 and 9,951.83

Step by Step Solution

1. Step 1: Write the proportion equation
   14,429.51 : 19,909.28 = 9,951.83 : x
2. Step 2: Convert to fraction form
   14,429.51/19,909.28 = 9,951.83/x
3. Step 3: Cross multiply
   14,429.51x = 19,909.28 × 9,951.83
4. Step 4: Simplify right side
   14,429.51x = 198,133,620.68
5. Step 5: Solve for x
   x = 198,133,620.68/14,429.51
6. Step 6: Final answer
   x = 13,731.14