Finding the Fourth Proportional to 42,269.46, 63,414.72 and 12,687.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,269.46 : 63,414.72 = 12,687.84 : x
2. Step 2: Convert to fraction form
   42,269.46/63,414.72 = 12,687.84/x
3. Step 3: Cross multiply
   42,269.46x = 63,414.72 × 12,687.84
4. Step 4: Simplify right side
   42,269.46x = 804,595,821.00
5. Step 5: Solve for x
   x = 804,595,821.00/42,269.46
6. Step 6: Final answer
   x = 19,034.92