Finding the Fourth Proportional to 71,407.46, 107,005.61 and 67,413.45

Step by Step Solution

1. Step 1: Write the proportion equation
   71,407.46 : 107,005.61 = 67,413.45 : x
2. Step 2: Convert to fraction form
   71,407.46/107,005.61 = 67,413.45/x
3. Step 3: Cross multiply
   71,407.46x = 107,005.61 × 67,413.45
4. Step 4: Simplify right side
   71,407.46x = 7,213,617,002.39
5. Step 5: Solve for x
   x = 7,213,617,002.39/71,407.46
6. Step 6: Final answer
   x = 101,020.50