Finding the Fourth Proportional to 13,431.52, 18,535.39 and 7,463.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,431.52 : 18,535.39 = 7,463.08 : x
2. Step 2: Convert to fraction form
   13,431.52/18,535.39 = 7,463.08/x
3. Step 3: Cross multiply
   13,431.52x = 18,535.39 × 7,463.08
4. Step 4: Simplify right side
   13,431.52x = 138,331,098.40
5. Step 5: Solve for x
   x = 138,331,098.40/13,431.52
6. Step 6: Final answer
   x = 10,298.99