Finding the Fourth Proportional to 10,335.42, 14,256.50 and 9,012.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,335.42 : 14,256.50 = 9,012.29 : x
2. Step 2: Convert to fraction form
   10,335.42/14,256.50 = 9,012.29/x
3. Step 3: Cross multiply
   10,335.42x = 14,256.50 × 9,012.29
4. Step 4: Simplify right side
   10,335.42x = 128,483,596.04
5. Step 5: Solve for x
   x = 128,483,596.04/10,335.42
6. Step 6: Final answer
   x = 12,431.39