Finding the Fourth Proportional to 42,041.33, 63,062.21 and 12,459.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,041.33 : 63,062.21 = 12,459.42 : x
2. Step 2: Convert to fraction form
   42,041.33/63,062.21 = 12,459.42/x
3. Step 3: Cross multiply
   42,041.33x = 63,062.21 × 12,459.42
4. Step 4: Simplify right side
   42,041.33x = 785,718,591.67
5. Step 5: Solve for x
   x = 785,718,591.67/42,041.33
6. Step 6: Final answer
   x = 18,689.20