Finding the Fourth Proportional to 10,280.55, 14,167.71 and 7,443.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,280.55 : 14,167.71 = 7,443.12 : x
2. Step 2: Convert to fraction form
   10,280.55/14,167.71 = 7,443.12/x
3. Step 3: Cross multiply
   10,280.55x = 14,167.71 × 7,443.12
4. Step 4: Simplify right side
   10,280.55x = 105,451,965.66
5. Step 5: Solve for x
   x = 105,451,965.66/10,280.55
6. Step 6: Final answer
   x = 10,257.42