Finding the Fourth Proportional to 42,124.34, 63,206.24 and 18,428.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,124.34 : 63,206.24 = 18,428.82 : x
2. Step 2: Convert to fraction form
   42,124.34/63,206.24 = 18,428.82/x
3. Step 3: Cross multiply
   42,124.34x = 63,206.24 × 18,428.82
4. Step 4: Simplify right side
   42,124.34x = 1,164,816,327.69
5. Step 5: Solve for x
   x = 1,164,816,327.69/42,124.34
6. Step 6: Final answer
   x = 27,651.86