Finding the Fourth Proportional to 9,477.27, 13,078.74 and 5,285.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,477.27 : 13,078.74 = 5,285.59 : x
2. Step 2: Convert to fraction form
   9,477.27/13,078.74 = 5,285.59/x
3. Step 3: Cross multiply
   9,477.27x = 13,078.74 × 5,285.59
4. Step 4: Simplify right side
   9,477.27x = 69,128,830.93
5. Step 5: Solve for x
   x = 69,128,830.93/9,477.27
6. Step 6: Final answer
   x = 7,294.17