Finding the Fourth Proportional to 9,764.76, 13,477.78 and 5,575.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,764.76 : 13,477.78 = 5,575.44 : x
2. Step 2: Convert to fraction form
   9,764.76/13,477.78 = 5,575.44/x
3. Step 3: Cross multiply
   9,764.76x = 13,477.78 × 5,575.44
4. Step 4: Simplify right side
   9,764.76x = 75,144,553.72
5. Step 5: Solve for x
   x = 75,144,553.72/9,764.76
6. Step 6: Final answer
   x = 7,695.48