Finding the Fourth Proportional to 9,503.34, 13,115.43 and 7,729.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,503.34 : 13,115.43 = 7,729.98 : x
2. Step 2: Convert to fraction form
   9,503.34/13,115.43 = 7,729.98/x
3. Step 3: Cross multiply
   9,503.34x = 13,115.43 × 7,729.98
4. Step 4: Simplify right side
   9,503.34x = 101,382,011.59
5. Step 5: Solve for x
   x = 101,382,011.59/9,503.34
6. Step 6: Final answer
   x = 10,668.04