Finding the Fourth Proportional to 13,443.41, 18,551.49 and 7,475.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.41 : 18,551.49 = 7,475.06 : x
2. Step 2: Convert to fraction form
   13,443.41/18,551.49 = 7,475.06/x
3. Step 3: Cross multiply
   13,443.41x = 18,551.49 × 7,475.06
4. Step 4: Simplify right side
   13,443.41x = 138,673,500.84
5. Step 5: Solve for x
   x = 138,673,500.84/13,443.41
6. Step 6: Final answer
   x = 10,315.35