Finding the Fourth Proportional to 12,288.90, 16,958.76 and 7,184.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,288.90 : 16,958.76 = 7,184.73 : x
2. Step 2: Convert to fraction form
   12,288.90/16,958.76 = 7,184.73/x
3. Step 3: Cross multiply
   12,288.90x = 16,958.76 × 7,184.73
4. Step 4: Simplify right side
   12,288.90x = 121,844,111.73
5. Step 5: Solve for x
   x = 121,844,111.73/12,288.90
6. Step 6: Final answer
   x = 9,914.97