Finding the Fourth Proportional to 10,919.45, 16,365.46 and 4,672.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,919.45 : 16,365.46 = 4,672.12 : x
2. Step 2: Convert to fraction form
   10,919.45/16,365.46 = 4,672.12/x
3. Step 3: Cross multiply
   10,919.45x = 16,365.46 × 4,672.12
4. Step 4: Simplify right side
   10,919.45x = 76,461,392.98
5. Step 5: Solve for x
   x = 76,461,392.98/10,919.45
6. Step 6: Final answer
   x = 7,002.31