Finding the Fourth Proportional to 9,738.88, 13,436.56 and 5,761.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,738.88 : 13,436.56 = 5,761.36 : x
2. Step 2: Convert to fraction form
   9,738.88/13,436.56 = 5,761.36/x
3. Step 3: Cross multiply
   9,738.88x = 13,436.56 × 5,761.36
4. Step 4: Simplify right side
   9,738.88x = 77,412,859.32
5. Step 5: Solve for x
   x = 77,412,859.32/9,738.88
6. Step 6: Final answer
   x = 7,948.85