Finding the Fourth Proportional to 13,112.64, 18,095.52 and 7,446.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,112.64 : 18,095.52 = 7,446.72 : x
2. Step 2: Convert to fraction form
   13,112.64/18,095.52 = 7,446.72/x
3. Step 3: Cross multiply
   13,112.64x = 18,095.52 × 7,446.72
4. Step 4: Simplify right side
   13,112.64x = 134,752,270.69
5. Step 5: Solve for x
   x = 134,752,270.69/13,112.64
6. Step 6: Final answer
   x = 10,276.52