Finding the Fourth Proportional to 12,492.42, 17,231.37 and 8,009.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,492.42 : 17,231.37 = 8,009.07 : x
2. Step 2: Convert to fraction form
   12,492.42/17,231.37 = 8,009.07/x
3. Step 3: Cross multiply
   12,492.42x = 17,231.37 × 8,009.07
4. Step 4: Simplify right side
   12,492.42x = 138,007,248.53
5. Step 5: Solve for x
   x = 138,007,248.53/12,492.42
6. Step 6: Final answer
   x = 11,047.28