Finding the Fourth Proportional to 8,164.11, 12,239.72 and 3,484.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,164.11 : 12,239.72 = 3,484.89 : x
2. Step 2: Convert to fraction form
   8,164.11/12,239.72 = 3,484.89/x
3. Step 3: Cross multiply
   8,164.11x = 12,239.72 × 3,484.89
4. Step 4: Simplify right side
   8,164.11x = 42,654,060.41
5. Step 5: Solve for x
   x = 42,654,060.41/8,164.11
6. Step 6: Final answer
   x = 5,224.58