Finding the Fourth Proportional to 7,678.74, 10,597.22 and 4,321.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,678.74 : 10,597.22 = 4,321.89 : x
2. Step 2: Convert to fraction form
   7,678.74/10,597.22 = 4,321.89/x
3. Step 3: Cross multiply
   7,678.74x = 10,597.22 × 4,321.89
4. Step 4: Simplify right side
   7,678.74x = 45,799,997.54
5. Step 5: Solve for x
   x = 45,799,997.54/7,678.74
6. Step 6: Final answer
   x = 5,964.52