Finding the Fourth Proportional to 10,336.53, 14,264.55 and 5,620.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,336.53 : 14,264.55 = 5,620.80 : x
2. Step 2: Convert to fraction form
   10,336.53/14,264.55 = 5,620.80/x
3. Step 3: Cross multiply
   10,336.53x = 14,264.55 × 5,620.80
4. Step 4: Simplify right side
   10,336.53x = 80,178,182.64
5. Step 5: Solve for x
   x = 80,178,182.64/10,336.53
6. Step 6: Final answer
   x = 7,756.78