Finding the Fourth Proportional to 59,660.10, 89,413.35 and 45,740.10

Step by Step Solution

1. Step 1: Write the proportion equation
   59,660.10 : 89,413.35 = 45,740.10 : x
2. Step 2: Convert to fraction form
   59,660.10/89,413.35 = 45,740.10/x
3. Step 3: Cross multiply
   59,660.10x = 89,413.35 × 45,740.10
4. Step 4: Simplify right side
   59,660.10x = 4,089,775,570.34
5. Step 5: Solve for x
   x = 4,089,775,570.34/59,660.10
6. Step 6: Final answer
   x = 68,551.27