Finding the Fourth Proportional to 55,223.34, 82,818.45 and 19,678.29

Step by Step Solution

1. Step 1: Write the proportion equation
   55,223.34 : 82,818.45 = 19,678.29 : x
2. Step 2: Convert to fraction form
   55,223.34/82,818.45 = 19,678.29/x
3. Step 3: Cross multiply
   55,223.34x = 82,818.45 × 19,678.29
4. Step 4: Simplify right side
   55,223.34x = 1,629,725,476.45
5. Step 5: Solve for x
   x = 1,629,725,476.45/55,223.34
6. Step 6: Final answer
   x = 29,511.53