Finding the Fourth Proportional to 8,698.48, 13,051.92 and 5,410.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.48 : 13,051.92 = 5,410.72 : x
2. Step 2: Convert to fraction form
   8,698.48/13,051.92 = 5,410.72/x
3. Step 3: Cross multiply
   8,698.48x = 13,051.92 × 5,410.72
4. Step 4: Simplify right side
   8,698.48x = 70,620,284.58
5. Step 5: Solve for x
   x = 70,620,284.58/8,698.48
6. Step 6: Final answer
   x = 8,118.69