Finding the Fourth Proportional to 22,435.04, 30,960.32 and 12,499.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,435.04 : 30,960.32 = 12,499.04 : x
2. Step 2: Convert to fraction form
   22,435.04/30,960.32 = 12,499.04/x
3. Step 3: Cross multiply
   22,435.04x = 30,960.32 × 12,499.04
4. Step 4: Simplify right side
   22,435.04x = 386,974,278.09
5. Step 5: Solve for x
   x = 386,974,278.09/22,435.04
6. Step 6: Final answer
   x = 17,248.66