Finding the Fourth Proportional to 9,938.28, 13,698.34 and 9,675.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938.28 : 13,698.34 = 9,675.34 : x
2. Step 2: Convert to fraction form
   9,938.28/13,698.34 = 9,675.34/x
3. Step 3: Cross multiply
   9,938.28x = 13,698.34 × 9,675.34
4. Step 4: Simplify right side
   9,938.28x = 132,536,096.94
5. Step 5: Solve for x
   x = 132,536,096.94/9,938.28
6. Step 6: Final answer
   x = 13,335.92