Finding the Fourth Proportional to 19,911, 29,870.78 and 6,583.29

Step by Step Solution

1. Step 1: Write the proportion equation
   19,911 : 29,870.78 = 6,583.29 : x
2. Step 2: Convert to fraction form
   19,911/29,870.78 = 6,583.29/x
3. Step 3: Cross multiply
   19,911x = 29,870.78 × 6,583.29
4. Step 4: Simplify right side
   19,911x = 196,648,007.27
5. Step 5: Solve for x
   x = 196,648,007.27/19,911
6. Step 6: Final answer
   x = 9,876.35