Finding the Fourth Proportional to 9,994.05, 13,791.75 and 5,457.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,994.05 : 13,791.75 = 5,457.03 : x
2. Step 2: Convert to fraction form
   9,994.05/13,791.75 = 5,457.03/x
3. Step 3: Cross multiply
   9,994.05x = 13,791.75 × 5,457.03
4. Step 4: Simplify right side
   9,994.05x = 75,261,993.50
5. Step 5: Solve for x
   x = 75,261,993.50/9,994.05
6. Step 6: Final answer
   x = 7,530.68