Finding the Fourth Proportional to 42,437.98, 63,640.25 and 15,413.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,437.98 : 63,640.25 = 15,413.93 : x
2. Step 2: Convert to fraction form
   42,437.98/63,640.25 = 15,413.93/x
3. Step 3: Cross multiply
   42,437.98x = 63,640.25 × 15,413.93
4. Step 4: Simplify right side
   42,437.98x = 980,946,259.86
5. Step 5: Solve for x
   x = 980,946,259.86/42,437.98
6. Step 6: Final answer
   x = 23,114.82