Finding the Fourth Proportional to 10,826.60, 16,211.86 and 9,276.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.60 : 16,211.86 = 9,276.53 : x
2. Step 2: Convert to fraction form
   10,826.60/16,211.86 = 9,276.53/x
3. Step 3: Cross multiply
   10,826.60x = 16,211.86 × 9,276.53
4. Step 4: Simplify right side
   10,826.60x = 150,389,701.40
5. Step 5: Solve for x
   x = 150,389,701.40/10,826.60
6. Step 6: Final answer
   x = 13,890.77