Finding the Fourth Proportional to 13,684.02, 18,883.91 and 7,396.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,684.02 : 18,883.91 = 7,396.38 : x
2. Step 2: Convert to fraction form
   13,684.02/18,883.91 = 7,396.38/x
3. Step 3: Cross multiply
   13,684.02x = 18,883.91 × 7,396.38
4. Step 4: Simplify right side
   13,684.02x = 139,672,498.32
5. Step 5: Solve for x
   x = 139,672,498.32/13,684.02
6. Step 6: Final answer
   x = 10,206.98