Finding the Fourth Proportional to 10,353.54, 14,271.75 and 8,671.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,353.54 : 14,271.75 = 8,671.98 : x
2. Step 2: Convert to fraction form
   10,353.54/14,271.75 = 8,671.98/x
3. Step 3: Cross multiply
   10,353.54x = 14,271.75 × 8,671.98
4. Step 4: Simplify right side
   10,353.54x = 123,764,330.57
5. Step 5: Solve for x
   x = 123,764,330.57/10,353.54
6. Step 6: Final answer
   x = 11,953.82