Finding the Fourth Proportional to 9,761.92, 13,471.68 and 5,570.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,761.92 : 13,471.68 = 5,570.56 : x
2. Step 2: Convert to fraction form
   9,761.92/13,471.68 = 5,570.56/x
3. Step 3: Cross multiply
   9,761.92x = 13,471.68 × 5,570.56
4. Step 4: Simplify right side
   9,761.92x = 75,044,801.74
5. Step 5: Solve for x
   x = 75,044,801.74/9,761.92
6. Step 6: Final answer
   x = 7,687.50