Finding the Fourth Proportional to 10,858.34, 14,986.84 and 7,074.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,858.34 : 14,986.84 = 7,074.73 : x
2. Step 2: Convert to fraction form
   10,858.34/14,986.84 = 7,074.73/x
3. Step 3: Cross multiply
   10,858.34x = 14,986.84 × 7,074.73
4. Step 4: Simplify right side
   10,858.34x = 106,027,846.55
5. Step 5: Solve for x
   x = 106,027,846.55/10,858.34
6. Step 6: Final answer
   x = 9,764.65