Finding the Fourth Proportional to 10,826.40, 14,947.38 and 8,841.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.40 : 14,947.38 = 8,841.72 : x
2. Step 2: Convert to fraction form
   10,826.40/14,947.38 = 8,841.72/x
3. Step 3: Cross multiply
   10,826.40x = 14,947.38 × 8,841.72
4. Step 4: Simplify right side
   10,826.40x = 132,160,548.69
5. Step 5: Solve for x
   x = 132,160,548.69/10,826.40
6. Step 6: Final answer
   x = 12,207.25