Finding the Fourth Proportional to 10,923.42, 16,389.72 and 4,684.80

Step by Step Solution

1. Step 1: Write the proportion equation
   10,923.42 : 16,389.72 = 4,684.80 : x
2. Step 2: Convert to fraction form
   10,923.42/16,389.72 = 4,684.80/x
3. Step 3: Cross multiply
   10,923.42x = 16,389.72 × 4,684.80
4. Step 4: Simplify right side
   10,923.42x = 76,782,560.26
5. Step 5: Solve for x
   x = 76,782,560.26/10,923.42
6. Step 6: Final answer
   x = 7,029.17