Finding the Fourth Proportional to 22,384.04, 30,890.22 and 12,312.65

Step by Step Solution

1. Step 1: Write the proportion equation
   22,384.04 : 30,890.22 = 12,312.65 : x
2. Step 2: Convert to fraction form
   22,384.04/30,890.22 = 12,312.65/x
3. Step 3: Cross multiply
   22,384.04x = 30,890.22 × 12,312.65
4. Step 4: Simplify right side
   22,384.04x = 380,340,312.83
5. Step 5: Solve for x
   x = 380,340,312.83/22,384.04
6. Step 6: Final answer
   x = 16,991.59