Finding the Fourth Proportional to 22,017.91, 30,384.71 and 12,586.67

Step by Step Solution

1. Step 1: Write the proportion equation
   22,017.91 : 30,384.71 = 12,586.67 : x
2. Step 2: Convert to fraction form
   22,017.91/30,384.71 = 12,586.67/x
3. Step 3: Cross multiply
   22,017.91x = 30,384.71 × 12,586.67
4. Step 4: Simplify right side
   22,017.91x = 382,442,317.82
5. Step 5: Solve for x
   x = 382,442,317.82/22,017.91
6. Step 6: Final answer
   x = 17,369.60