Finding the Fourth Proportional to 8,846.55, 12,207.89 and 5,212.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,846.55 : 12,207.89 = 5,212.56 : x
2. Step 2: Convert to fraction form
   8,846.55/12,207.89 = 5,212.56/x
3. Step 3: Cross multiply
   8,846.55x = 12,207.89 × 5,212.56
4. Step 4: Simplify right side
   8,846.55x = 63,634,333.04
5. Step 5: Solve for x
   x = 63,634,333.04/8,846.55
6. Step 6: Final answer
   x = 7,193.12