Finding the Fourth Proportional to 9,356.19, 12,905.78 and 5,576.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,356.19 : 12,905.78 = 5,576.94 : x
2. Step 2: Convert to fraction form
   9,356.19/12,905.78 = 5,576.94/x
3. Step 3: Cross multiply
   9,356.19x = 12,905.78 × 5,576.94
4. Step 4: Simplify right side
   9,356.19x = 71,974,732.83
5. Step 5: Solve for x
   x = 71,974,732.83/9,356.19
6. Step 6: Final answer
   x = 7,692.74