Finding the Fourth Proportional to 13,462.55, 18,578.12 and 7,494.21

Step by Step Solution

1. Step 1: Write the proportion equation
   13,462.55 : 18,578.12 = 7,494.21 : x
2. Step 2: Convert to fraction form
   13,462.55/18,578.12 = 7,494.21/x
3. Step 3: Cross multiply
   13,462.55x = 18,578.12 × 7,494.21
4. Step 4: Simplify right side
   13,462.55x = 139,228,332.69
5. Step 5: Solve for x
   x = 139,228,332.69/13,462.55
6. Step 6: Final answer
   x = 10,341.90