Finding the Fourth Proportional to 8,978.59, 13,468.61 and 2,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,978.59 : 13,468.61 = 2,404.72 : x
2. Step 2: Convert to fraction form
   8,978.59/13,468.61 = 2,404.72/x
3. Step 3: Cross multiply
   8,978.59x = 13,468.61 × 2,404.72
4. Step 4: Simplify right side
   8,978.59x = 32,388,235.84
5. Step 5: Solve for x
   x = 32,388,235.84/8,978.59
6. Step 6: Final answer
   x = 3,607.27