Finding the Fourth Proportional to 42,062.05, 63,083.34 and 12,472.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,062.05 : 63,083.34 = 12,472.75 : x
2. Step 2: Convert to fraction form
   42,062.05/63,083.34 = 12,472.75/x
3. Step 3: Cross multiply
   42,062.05x = 63,083.34 × 12,472.75
4. Step 4: Simplify right side
   42,062.05x = 786,822,413.57
5. Step 5: Solve for x
   x = 786,822,413.57/42,062.05
6. Step 6: Final answer
   x = 18,706.23