Finding the Fourth Proportional to 10,986.42, 16,486.78 and 4,752.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,986.42 : 16,486.78 = 4,752.52 : x
2. Step 2: Convert to fraction form
   10,986.42/16,486.78 = 4,752.52/x
3. Step 3: Cross multiply
   10,986.42x = 16,486.78 × 4,752.52
4. Step 4: Simplify right side
   10,986.42x = 78,353,751.69
5. Step 5: Solve for x
   x = 78,353,751.69/10,986.42
6. Step 6: Final answer
   x = 7,131.87