Finding the Fourth Proportional to 9,404.64, 12,978.42 and 5,867.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.64 : 12,978.42 = 5,867.88 : x
2. Step 2: Convert to fraction form
   9,404.64/12,978.42 = 5,867.88/x
3. Step 3: Cross multiply
   9,404.64x = 12,978.42 × 5,867.88
4. Step 4: Simplify right side
   9,404.64x = 76,155,811.15
5. Step 5: Solve for x
   x = 76,155,811.15/9,404.64
6. Step 6: Final answer
   x = 8,097.68