Finding the Fourth Proportional to 9,765.60, 13,475.88 and 5,573.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,765.60 : 13,475.88 = 5,573.76 : x
2. Step 2: Convert to fraction form
   9,765.60/13,475.88 = 5,573.76/x
3. Step 3: Cross multiply
   9,765.60x = 13,475.88 × 5,573.76
4. Step 4: Simplify right side
   9,765.60x = 75,111,320.91
5. Step 5: Solve for x
   x = 75,111,320.91/9,765.60
6. Step 6: Final answer
   x = 7,691.42