Finding the Fourth Proportional to 9,723.72, 13,418.98 and 5,474.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,723.72 : 13,418.98 = 5,474.91 : x
2. Step 2: Convert to fraction form
   9,723.72/13,418.98 = 5,474.91/x
3. Step 3: Cross multiply
   9,723.72x = 13,418.98 × 5,474.91
4. Step 4: Simplify right side
   9,723.72x = 73,467,680.42
5. Step 5: Solve for x
   x = 73,467,680.42/9,723.72
6. Step 6: Final answer
   x = 7,555.52