Finding the Fourth Proportional to 13,443.58, 18,552.48 and 7,475.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.58 : 18,552.48 = 7,475.63 : x
2. Step 2: Convert to fraction form
   13,443.58/18,552.48 = 7,475.63/x
3. Step 3: Cross multiply
   13,443.58x = 18,552.48 × 7,475.63
4. Step 4: Simplify right side
   13,443.58x = 138,691,465.07
5. Step 5: Solve for x
   x = 138,691,465.07/13,443.58
6. Step 6: Final answer
   x = 10,316.56