Finding the Fourth Proportional to 10,790.20, 14,770.91 and 10,454.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,790.20 : 14,770.91 = 10,454.86 : x
2. Step 2: Convert to fraction form
   10,790.20/14,770.91 = 10,454.86/x
3. Step 3: Cross multiply
   10,790.20x = 14,770.91 × 10,454.86
4. Step 4: Simplify right side
   10,790.20x = 154,427,796.12
5. Step 5: Solve for x
   x = 154,427,796.12/10,790.20
6. Step 6: Final answer
   x = 14,311.86