Finding the Fourth Proportional to 9,477.16, 13,078.28 and 5,498.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,477.16 : 13,078.28 = 5,498.18 : x
2. Step 2: Convert to fraction form
   9,477.16/13,078.28 = 5,498.18/x
3. Step 3: Cross multiply
   9,477.16x = 13,078.28 × 5,498.18
4. Step 4: Simplify right side
   9,477.16x = 71,906,737.53
5. Step 5: Solve for x
   x = 71,906,737.53/9,477.16
6. Step 6: Final answer
   x = 7,587.37