Finding the Fourth Proportional to 13,513.64, 18,648.56 and 7,546.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,513.64 : 18,648.56 = 7,546.72 : x
2. Step 2: Convert to fraction form
   13,513.64/18,648.56 = 7,546.72/x
3. Step 3: Cross multiply
   13,513.64x = 18,648.56 × 7,546.72
4. Step 4: Simplify right side
   13,513.64x = 140,735,460.72
5. Step 5: Solve for x
   x = 140,735,460.72/13,513.64
6. Step 6: Final answer
   x = 10,414.33