Finding the Fourth Proportional to 22,369.55, 30,870.04 and 12,809.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,369.55 : 30,870.04 = 12,809.58 : x
2. Step 2: Convert to fraction form
   22,369.55/30,870.04 = 12,809.58/x
3. Step 3: Cross multiply
   22,369.55x = 30,870.04 × 12,809.58
4. Step 4: Simplify right side
   22,369.55x = 395,432,246.98
5. Step 5: Solve for x
   x = 395,432,246.98/22,369.55
6. Step 6: Final answer
   x = 17,677.26