Finding the Fourth Proportional to 9,643.38, 13,315.41 and 7,401.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,643.38 : 13,315.41 = 7,401.71 : x
2. Step 2: Convert to fraction form
   9,643.38/13,315.41 = 7,401.71/x
3. Step 3: Cross multiply
   9,643.38x = 13,315.41 × 7,401.71
4. Step 4: Simplify right side
   9,643.38x = 98,556,803.35
5. Step 5: Solve for x
   x = 98,556,803.35/9,643.38
6. Step 6: Final answer
   x = 10,220.15