Finding the Fourth Proportional to 13,431.96, 18,535.86 and 7,463.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,431.96 : 18,535.86 = 7,463.52 : x
2. Step 2: Convert to fraction form
   13,431.96/18,535.86 = 7,463.52/x
3. Step 3: Cross multiply
   13,431.96x = 18,535.86 × 7,463.52
4. Step 4: Simplify right side
   13,431.96x = 138,342,761.83
5. Step 5: Solve for x
   x = 138,342,761.83/13,431.96
6. Step 6: Final answer
   x = 10,299.52