Finding the Fourth Proportional to 10,979.52, 16,483.50 and 9,429.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,979.52 : 16,483.50 = 9,429.54 : x
2. Step 2: Convert to fraction form
   10,979.52/16,483.50 = 9,429.54/x
3. Step 3: Cross multiply
   10,979.52x = 16,483.50 × 9,429.54
4. Step 4: Simplify right side
   10,979.52x = 155,431,822.59
5. Step 5: Solve for x
   x = 155,431,822.59/10,979.52
6. Step 6: Final answer
   x = 14,156.52