Finding the Fourth Proportional to 8,770.14, 12,106.15 and 5,413.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,770.14 : 12,106.15 = 5,413.50 : x
2. Step 2: Convert to fraction form
   8,770.14/12,106.15 = 5,413.50/x
3. Step 3: Cross multiply
   8,770.14x = 12,106.15 × 5,413.50
4. Step 4: Simplify right side
   8,770.14x = 65,536,643.03
5. Step 5: Solve for x
   x = 65,536,643.03/8,770.14
6. Step 6: Final answer
   x = 7,472.70