Finding the Fourth Proportional to 10,806.94, 16,188.72 and 4,955.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,806.94 : 16,188.72 = 4,955.50 : x
2. Step 2: Convert to fraction form
   10,806.94/16,188.72 = 4,955.50/x
3. Step 3: Cross multiply
   10,806.94x = 16,188.72 × 4,955.50
4. Step 4: Simplify right side
   10,806.94x = 80,223,201.96
5. Step 5: Solve for x
   x = 80,223,201.96/10,806.94
6. Step 6: Final answer
   x = 7,423.30