Finding the Fourth Proportional to 25,679.34, 35,363.78 and 22,065.42

Step by Step Solution

1. Step 1: Write the proportion equation
   25,679.34 : 35,363.78 = 22,065.42 : x
2. Step 2: Convert to fraction form
   25,679.34/35,363.78 = 22,065.42/x
3. Step 3: Cross multiply
   25,679.34x = 35,363.78 × 22,065.42
4. Step 4: Simplify right side
   25,679.34x = 780,316,658.49
5. Step 5: Solve for x
   x = 780,316,658.49/25,679.34
6. Step 6: Final answer
   x = 30,386.94