Finding the Fourth Proportional to 9,477.18, 13,078.59 and 5,498.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,477.18 : 13,078.59 = 5,498.36 : x
2. Step 2: Convert to fraction form
   9,477.18/13,078.59 = 5,498.36/x
3. Step 3: Cross multiply
   9,477.18x = 13,078.59 × 5,498.36
4. Step 4: Simplify right side
   9,477.18x = 71,910,796.11
5. Step 5: Solve for x
   x = 71,910,796.11/9,477.18
6. Step 6: Final answer
   x = 7,587.78