Finding the Fourth Proportional to 10,551.40, 14,573.33 and 8,434.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,551.40 : 14,573.33 = 8,434.27 : x
2. Step 2: Convert to fraction form
   10,551.40/14,573.33 = 8,434.27/x
3. Step 3: Cross multiply
   10,551.40x = 14,573.33 × 8,434.27
4. Step 4: Simplify right side
   10,551.40x = 122,915,400.02
5. Step 5: Solve for x
   x = 122,915,400.02/10,551.40
6. Step 6: Final answer
   x = 11,649.20