Finding the Fourth Proportional to 9,451.80, 13,041.72 and 5,472.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,451.80 : 13,041.72 = 5,472.60 : x
2. Step 2: Convert to fraction form
   9,451.80/13,041.72 = 5,472.60/x
3. Step 3: Cross multiply
   9,451.80x = 13,041.72 × 5,472.60
4. Step 4: Simplify right side
   9,451.80x = 71,372,116.87
5. Step 5: Solve for x
   x = 71,372,116.87/9,451.80
6. Step 6: Final answer
   x = 7,551.17