Finding the Fourth Proportional to 22,379.76, 30,884.28 and 12,308.26

Step by Step Solution

1. Step 1: Write the proportion equation
   22,379.76 : 30,884.28 = 12,308.26 : x
2. Step 2: Convert to fraction form
   22,379.76/30,884.28 = 12,308.26/x
3. Step 3: Cross multiply
   22,379.76x = 30,884.28 × 12,308.26
4. Step 4: Simplify right side
   22,379.76x = 380,131,748.15
5. Step 5: Solve for x
   x = 380,131,748.15/22,379.76
6. Step 6: Final answer
   x = 16,985.51