Finding the Fourth Proportional to 14,802.10, 20,426.31 and 8,429.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,802.10 : 20,426.31 = 8,429.56 : x
2. Step 2: Convert to fraction form
   14,802.10/20,426.31 = 8,429.56/x
3. Step 3: Cross multiply
   14,802.10x = 20,426.31 × 8,429.56
4. Step 4: Simplify right side
   14,802.10x = 172,184,805.72
5. Step 5: Solve for x
   x = 172,184,805.72/14,802.10
6. Step 6: Final answer
   x = 11,632.46