Finding the Fourth Proportional to 9,354.77, 12,909.27 and 5,575.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.77 : 12,909.27 = 5,575.99 : x
2. Step 2: Convert to fraction form
   9,354.77/12,909.27 = 5,575.99/x
3. Step 3: Cross multiply
   9,354.77x = 12,909.27 × 5,575.99
4. Step 4: Simplify right side
   9,354.77x = 71,981,965.21
5. Step 5: Solve for x
   x = 71,981,965.21/9,354.77
6. Step 6: Final answer
   x = 7,694.68