Finding the Fourth Proportional to 8,215.56, 12,315.03 and 4,704.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,215.56 : 12,315.03 = 4,704.34 : x
2. Step 2: Convert to fraction form
   8,215.56/12,315.03 = 4,704.34/x
3. Step 3: Cross multiply
   8,215.56x = 12,315.03 × 4,704.34
4. Step 4: Simplify right side
   8,215.56x = 57,934,088.23
5. Step 5: Solve for x
   x = 57,934,088.23/8,215.56
6. Step 6: Final answer
   x = 7,051.75