Finding the Fourth Proportional to 14,454.81, 21,672.51 and 7,426.05

Step by Step Solution

1. Step 1: Write the proportion equation
   14,454.81 : 21,672.51 = 7,426.05 : x
2. Step 2: Convert to fraction form
   14,454.81/21,672.51 = 7,426.05/x
3. Step 3: Cross multiply
   14,454.81x = 21,672.51 × 7,426.05
4. Step 4: Simplify right side
   14,454.81x = 160,941,142.89
5. Step 5: Solve for x
   x = 160,941,142.89/14,454.81
6. Step 6: Final answer
   x = 11,134.09