Finding the Fourth Proportional to 8,254.34, 12,385.56 and 3,872.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,254.34 : 12,385.56 = 3,872.12 : x
2. Step 2: Convert to fraction form
   8,254.34/12,385.56 = 3,872.12/x
3. Step 3: Cross multiply
   8,254.34x = 12,385.56 × 3,872.12
4. Step 4: Simplify right side
   8,254.34x = 47,958,374.59
5. Step 5: Solve for x
   x = 47,958,374.59/8,254.34
6. Step 6: Final answer
   x = 5,810.08