Finding the Fourth Proportional to 13,749.34, 18,974.15 and 7,461.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,749.34 : 18,974.15 = 7,461.72 : x
2. Step 2: Convert to fraction form
   13,749.34/18,974.15 = 7,461.72/x
3. Step 3: Cross multiply
   13,749.34x = 18,974.15 × 7,461.72
4. Step 4: Simplify right side
   13,749.34x = 141,579,794.54
5. Step 5: Solve for x
   x = 141,579,794.54/13,749.34
6. Step 6: Final answer
   x = 10,297.21