Finding the Fourth Proportional to 22,443.78, 33,666.53 and 8,402.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,443.78 : 33,666.53 = 8,402.34 : x
2. Step 2: Convert to fraction form
   22,443.78/33,666.53 = 8,402.34/x
3. Step 3: Cross multiply
   22,443.78x = 33,666.53 × 8,402.34
4. Step 4: Simplify right side
   22,443.78x = 282,877,631.68
5. Step 5: Solve for x
   x = 282,877,631.68/22,443.78
6. Step 6: Final answer
   x = 12,603.83