Finding the Fourth Proportional to 22,710.94, 34,066.71 and 7,128.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,710.94 : 34,066.71 = 7,128.56 : x
2. Step 2: Convert to fraction form
   22,710.94/34,066.71 = 7,128.56/x
3. Step 3: Cross multiply
   22,710.94x = 34,066.71 × 7,128.56
4. Step 4: Simplify right side
   22,710.94x = 242,846,671.40
5. Step 5: Solve for x
   x = 242,846,671.40/22,710.94
6. Step 6: Final answer
   x = 10,692.94