Finding the Fourth Proportional to 10,678.61, 16,011.91 and 4,434.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,678.61 : 16,011.91 = 4,434.42 : x
2. Step 2: Convert to fraction form
   10,678.61/16,011.91 = 4,434.42/x
3. Step 3: Cross multiply
   10,678.61x = 16,011.91 × 4,434.42
4. Step 4: Simplify right side
   10,678.61x = 71,003,545.03
5. Step 5: Solve for x
   x = 71,003,545.03/10,678.61
6. Step 6: Final answer
   x = 6,649.14