Finding the Fourth Proportional to 22,300.57, 30,777.90 and 13,805.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.57 : 30,777.90 = 13,805.39 : x
2. Step 2: Convert to fraction form
   22,300.57/30,777.90 = 13,805.39/x
3. Step 3: Cross multiply
   22,300.57x = 30,777.90 × 13,805.39
4. Step 4: Simplify right side
   22,300.57x = 424,900,912.88
5. Step 5: Solve for x
   x = 424,900,912.88/22,300.57
6. Step 6: Final answer
   x = 19,053.37