Finding the Fourth Proportional to 9,667.34, 13,347.35 and 7,425.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,667.34 : 13,347.35 = 7,425.21 : x
2. Step 2: Convert to fraction form
   9,667.34/13,347.35 = 7,425.21/x
3. Step 3: Cross multiply
   9,667.34x = 13,347.35 × 7,425.21
4. Step 4: Simplify right side
   9,667.34x = 99,106,876.69
5. Step 5: Solve for x
   x = 99,106,876.69/9,667.34
6. Step 6: Final answer
   x = 10,251.72