Finding the Fourth Proportional to 42,150.09, 63,229.37 and 12,165.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,150.09 : 63,229.37 = 12,165.08 : x
2. Step 2: Convert to fraction form
   42,150.09/63,229.37 = 12,165.08/x
3. Step 3: Cross multiply
   42,150.09x = 63,229.37 × 12,165.08
4. Step 4: Simplify right side
   42,150.09x = 769,189,967.43
5. Step 5: Solve for x
   x = 769,189,967.43/42,150.09
6. Step 6: Final answer
   x = 18,248.83