Finding the Fourth Proportional to 22,321, 30,802.98 and 12,386.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,321 : 30,802.98 = 12,386.92 : x
2. Step 2: Convert to fraction form
   22,321/30,802.98 = 12,386.92/x
3. Step 3: Cross multiply
   22,321x = 30,802.98 × 12,386.92
4. Step 4: Simplify right side
   22,321x = 381,554,049.02
5. Step 5: Solve for x
   x = 381,554,049.02/22,321
6. Step 6: Final answer
   x = 17,093.95