Finding the Fourth Proportional to 9,314.73, 12,853.56 and 5,485.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.73 : 12,853.56 = 5,485.77 : x
2. Step 2: Convert to fraction form
   9,314.73/12,853.56 = 5,485.77/x
3. Step 3: Cross multiply
   9,314.73x = 12,853.56 × 5,485.77
4. Step 4: Simplify right side
   9,314.73x = 70,511,673.84
5. Step 5: Solve for x
   x = 70,511,673.84/9,314.73
6. Step 6: Final answer
   x = 7,569.91