Finding the Fourth Proportional to 10,928.01, 15,065.33 and 9,242.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,928.01 : 15,065.33 = 9,242.61 : x
2. Step 2: Convert to fraction form
   10,928.01/15,065.33 = 9,242.61/x
3. Step 3: Cross multiply
   10,928.01x = 15,065.33 × 9,242.61
4. Step 4: Simplify right side
   10,928.01x = 139,242,923.50
5. Step 5: Solve for x
   x = 139,242,923.50/10,928.01
6. Step 6: Final answer
   x = 12,741.84