Finding the Fourth Proportional to 11,284.83, 16,915.37 and 5,429.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,284.83 : 16,915.37 = 5,429.07 : x
2. Step 2: Convert to fraction form
   11,284.83/16,915.37 = 5,429.07/x
3. Step 3: Cross multiply
   11,284.83x = 16,915.37 × 5,429.07
4. Step 4: Simplify right side
   11,284.83x = 91,834,700.66
5. Step 5: Solve for x
   x = 91,834,700.66/11,284.83
6. Step 6: Final answer
   x = 8,137.89