Finding the Fourth Proportional to 9,230.42, 12,774.53 and 9,009.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,230.42 : 12,774.53 = 9,009.29 : x
2. Step 2: Convert to fraction form
   9,230.42/12,774.53 = 9,009.29/x
3. Step 3: Cross multiply
   9,230.42x = 12,774.53 × 9,009.29
4. Step 4: Simplify right side
   9,230.42x = 115,089,422.86
5. Step 5: Solve for x
   x = 115,089,422.86/9,230.42
6. Step 6: Final answer
   x = 12,468.49