Finding the Fourth Proportional to 13,079.50, 18,045.72 and 7,413.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,079.50 : 18,045.72 = 7,413.34 : x
2. Step 2: Convert to fraction form
   13,079.50/18,045.72 = 7,413.34/x
3. Step 3: Cross multiply
   13,079.50x = 18,045.72 × 7,413.34
4. Step 4: Simplify right side
   13,079.50x = 133,779,057.90
5. Step 5: Solve for x
   x = 133,779,057.90/13,079.50
6. Step 6: Final answer
   x = 10,228.15