Finding the Fourth Proportional to 16,515.71, 22,788.83 and 9,345.95

Step by Step Solution

1. Step 1: Write the proportion equation
   16,515.71 : 22,788.83 = 9,345.95 : x
2. Step 2: Convert to fraction form
   16,515.71/22,788.83 = 9,345.95/x
3. Step 3: Cross multiply
   16,515.71x = 22,788.83 × 9,345.95
4. Step 4: Simplify right side
   16,515.71x = 212,983,219.01
5. Step 5: Solve for x
   x = 212,983,219.01/16,515.71
6. Step 6: Final answer
   x = 12,895.80