Finding the Fourth Proportional to 42,308.14, 63,463.37 and 12,321.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,308.14 : 63,463.37 = 12,321.18 : x
2. Step 2: Convert to fraction form
   42,308.14/63,463.37 = 12,321.18/x
3. Step 3: Cross multiply
   42,308.14x = 63,463.37 × 12,321.18
4. Step 4: Simplify right side
   42,308.14x = 781,943,605.18
5. Step 5: Solve for x
   x = 781,943,605.18/42,308.14
6. Step 6: Final answer
   x = 18,482.11