Finding the Fourth Proportional to 9,948.42, 13,713.30 and 7,426.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,948.42 : 13,713.30 = 7,426.89 : x
2. Step 2: Convert to fraction form
   9,948.42/13,713.30 = 7,426.89/x
3. Step 3: Cross multiply
   9,948.42x = 13,713.30 × 7,426.89
4. Step 4: Simplify right side
   9,948.42x = 101,847,170.64
5. Step 5: Solve for x
   x = 101,847,170.64/9,948.42
6. Step 6: Final answer
   x = 10,237.52