Finding the Fourth Proportional to 22,069.67, 33,100.85 and 7,278.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,069.67 : 33,100.85 = 7,278.80 : x
2. Step 2: Convert to fraction form
   22,069.67/33,100.85 = 7,278.80/x
3. Step 3: Cross multiply
   22,069.67x = 33,100.85 × 7,278.80
4. Step 4: Simplify right side
   22,069.67x = 240,934,319.67
5. Step 5: Solve for x
   x = 240,934,319.67/22,069.67
6. Step 6: Final answer
   x = 10,916.99