Finding the Fourth Proportional to 22,245.89, 30,699.33 and 12,814.45

Step by Step Solution

1. Step 1: Write the proportion equation
   22,245.89 : 30,699.33 = 12,814.45 : x
2. Step 2: Convert to fraction form
   22,245.89/30,699.33 = 12,814.45/x
3. Step 3: Cross multiply
   22,245.89x = 30,699.33 × 12,814.45
4. Step 4: Simplify right side
   22,245.89x = 393,395,113.24
5. Step 5: Solve for x
   x = 393,395,113.24/22,245.89
6. Step 6: Final answer
   x = 17,683.95