Finding the Fourth Proportional to 13,443.50, 18,552.11 and 7,475.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.50 : 18,552.11 = 7,475.22 : x
2. Step 2: Convert to fraction form
   13,443.50/18,552.11 = 7,475.22/x
3. Step 3: Cross multiply
   13,443.50x = 18,552.11 × 7,475.22
4. Step 4: Simplify right side
   13,443.50x = 138,681,066.34
5. Step 5: Solve for x
   x = 138,681,066.34/13,443.50
6. Step 6: Final answer
   x = 10,315.84