Finding the Fourth Proportional to 19,401.56, 29,100.94 and 6,920.18

Step by Step Solution

1. Step 1: Write the proportion equation
   19,401.56 : 29,100.94 = 6,920.18 : x
2. Step 2: Convert to fraction form
   19,401.56/29,100.94 = 6,920.18/x
3. Step 3: Cross multiply
   19,401.56x = 29,100.94 × 6,920.18
4. Step 4: Simplify right side
   19,401.56x = 201,383,580.16
5. Step 5: Solve for x
   x = 201,383,580.16/19,401.56
6. Step 6: Final answer
   x = 10,379.76