Finding the Fourth Proportional to 8,821.95, 12,171.15 and 5,042.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,821.95 : 12,171.15 = 5,042.34 : x
2. Step 2: Convert to fraction form
   8,821.95/12,171.15 = 5,042.34/x
3. Step 3: Cross multiply
   8,821.95x = 12,171.15 × 5,042.34
4. Step 4: Simplify right side
   8,821.95x = 61,371,076.49
5. Step 5: Solve for x
   x = 61,371,076.49/8,821.95
6. Step 6: Final answer
   x = 6,956.63