Finding the Fourth Proportional to 8,533.68, 12,779.15 and 5,404.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,533.68 : 12,779.15 = 5,404.25 : x
2. Step 2: Convert to fraction form
   8,533.68/12,779.15 = 5,404.25/x
3. Step 3: Cross multiply
   8,533.68x = 12,779.15 × 5,404.25
4. Step 4: Simplify right side
   8,533.68x = 69,061,630.47
5. Step 5: Solve for x
   x = 69,061,630.47/8,533.68
6. Step 6: Final answer
   x = 8,092.83