Finding the Fourth Proportional to 51,429.76, 77,144.33 and 19,414.82

Step by Step Solution

1. Step 1: Write the proportion equation
   51,429.76 : 77,144.33 = 19,414.82 : x
2. Step 2: Convert to fraction form
   51,429.76/77,144.33 = 19,414.82/x
3. Step 3: Cross multiply
   51,429.76x = 77,144.33 × 19,414.82
4. Step 4: Simplify right side
   51,429.76x = 1,497,743,522.37
5. Step 5: Solve for x
   x = 1,497,743,522.37/51,429.76
6. Step 6: Final answer
   x = 29,122.12