Finding the Fourth Proportional to 13,456.45, 18,569.14 and 7,487.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,456.45 : 18,569.14 = 7,487.83 : x
2. Step 2: Convert to fraction form
   13,456.45/18,569.14 = 7,487.83/x
3. Step 3: Cross multiply
   13,456.45x = 18,569.14 × 7,487.83
4. Step 4: Simplify right side
   13,456.45x = 139,042,563.57
5. Step 5: Solve for x
   x = 139,042,563.57/13,456.45
6. Step 6: Final answer
   x = 10,332.78