Finding the Fourth Proportional to 13,443.96, 18,551.32 and 7,475.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443.96 : 18,551.32 = 7,475.02 : x
2. Step 2: Convert to fraction form
   13,443.96/18,551.32 = 7,475.02/x
3. Step 3: Cross multiply
   13,443.96x = 18,551.32 × 7,475.02
4. Step 4: Simplify right side
   13,443.96x = 138,671,488.03
5. Step 5: Solve for x
   x = 138,671,488.03/13,443.96
6. Step 6: Final answer
   x = 10,314.78