Finding the Fourth Proportional to 9,334.95, 12,882.50 and 5,356.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,334.95 : 12,882.50 = 5,356.77 : x
2. Step 2: Convert to fraction form
   9,334.95/12,882.50 = 5,356.77/x
3. Step 3: Cross multiply
   9,334.95x = 12,882.50 × 5,356.77
4. Step 4: Simplify right side
   9,334.95x = 69,008,589.53
5. Step 5: Solve for x
   x = 69,008,589.53/9,334.95
6. Step 6: Final answer
   x = 7,392.50