Finding the Fourth Proportional to 9,910.56, 13,676.77 and 5,434.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.56 : 13,676.77 = 5,434.05 : x
2. Step 2: Convert to fraction form
   9,910.56/13,676.77 = 5,434.05/x
3. Step 3: Cross multiply
   9,910.56x = 13,676.77 × 5,434.05
4. Step 4: Simplify right side
   9,910.56x = 74,320,202.60
5. Step 5: Solve for x
   x = 74,320,202.60/9,910.56
6. Step 6: Final answer
   x = 7,499.09