Finding the Fourth Proportional to 13,446.55, 18,556.69 and 7,397.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,446.55 : 18,556.69 = 7,397.04 : x
2. Step 2: Convert to fraction form
   13,446.55/18,556.69 = 7,397.04/x
3. Step 3: Cross multiply
   13,446.55x = 18,556.69 × 7,397.04
4. Step 4: Simplify right side
   13,446.55x = 137,264,606.10
5. Step 5: Solve for x
   x = 137,264,606.10/13,446.55
6. Step 6: Final answer
   x = 10,208.17