Finding the Fourth Proportional to 22,231.72, 33,345.12 and 5,591.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,231.72 : 33,345.12 = 5,591.76 : x
2. Step 2: Convert to fraction form
   22,231.72/33,345.12 = 5,591.76/x
3. Step 3: Cross multiply
   22,231.72x = 33,345.12 × 5,591.76
4. Step 4: Simplify right side
   22,231.72x = 186,457,811.86
5. Step 5: Solve for x
   x = 186,457,811.86/22,231.72
6. Step 6: Final answer
   x = 8,387.02