Finding the Fourth Proportional to 8,852.10, 12,213.69 and 5,704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,852.10 : 12,213.69 = 5,704.50 : x
2. Step 2: Convert to fraction form
   8,852.10/12,213.69 = 5,704.50/x
3. Step 3: Cross multiply
   8,852.10x = 12,213.69 × 5,704.50
4. Step 4: Simplify right side
   8,852.10x = 69,672,994.61
5. Step 5: Solve for x
   x = 69,672,994.61/8,852.10
6. Step 6: Final answer
   x = 7,870.79