Finding the Fourth Proportional to 22,275.72, 33,406.59 and 7,279.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,275.72 : 33,406.59 = 7,279.42 : x
2. Step 2: Convert to fraction form
   22,275.72/33,406.59 = 7,279.42/x
3. Step 3: Cross multiply
   22,275.72x = 33,406.59 × 7,279.42
4. Step 4: Simplify right side
   22,275.72x = 243,180,515.86
5. Step 5: Solve for x
   x = 243,180,515.86/22,275.72
6. Step 6: Final answer
   x = 10,916.84