Finding the Fourth Proportional to 9,354.72, 12,909.19 and 5,575.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.72 : 12,909.19 = 5,575.94 : x
2. Step 2: Convert to fraction form
   9,354.72/12,909.19 = 5,575.94/x
3. Step 3: Cross multiply
   9,354.72x = 12,909.19 × 5,575.94
4. Step 4: Simplify right side
   9,354.72x = 71,980,868.89
5. Step 5: Solve for x
   x = 71,980,868.89/9,354.72
6. Step 6: Final answer
   x = 7,694.60