Finding the Fourth Proportional to 9,430.79, 13,016.45 and 5,451.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,430.79 : 13,016.45 = 5,451.35 : x
2. Step 2: Convert to fraction form
   9,430.79/13,016.45 = 5,451.35/x
3. Step 3: Cross multiply
   9,430.79x = 13,016.45 × 5,451.35
4. Step 4: Simplify right side
   9,430.79x = 70,957,197.45
5. Step 5: Solve for x
   x = 70,957,197.45/9,430.79
6. Step 6: Final answer
   x = 7,523.99