Finding the Fourth Proportional to 13,673.57, 18,869.52 and 7,385.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,673.57 : 18,869.52 = 7,385.94 : x
2. Step 2: Convert to fraction form
   13,673.57/18,869.52 = 7,385.94/x
3. Step 3: Cross multiply
   13,673.57x = 18,869.52 × 7,385.94
4. Step 4: Simplify right side
   13,673.57x = 139,369,142.55
5. Step 5: Solve for x
   x = 139,369,142.55/13,673.57
6. Step 6: Final answer
   x = 10,192.59