Finding the Fourth Proportional to 22,128.56, 33,191.02 and 7,332.64

Step by Step Solution

1. Step 1: Write the proportion equation
   22,128.56 : 33,191.02 = 7,332.64 : x
2. Step 2: Convert to fraction form
   22,128.56/33,191.02 = 7,332.64/x
3. Step 3: Cross multiply
   22,128.56x = 33,191.02 × 7,332.64
4. Step 4: Simplify right side
   22,128.56x = 243,377,800.89
5. Step 5: Solve for x
   x = 243,377,800.89/22,128.56
6. Step 6: Final answer
   x = 10,998.36