Finding the Fourth Proportional to 8,065.51, 11,130.86 and 5,372.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,065.51 : 11,130.86 = 5,372.06 : x
2. Step 2: Convert to fraction form
   8,065.51/11,130.86 = 5,372.06/x
3. Step 3: Cross multiply
   8,065.51x = 11,130.86 × 5,372.06
4. Step 4: Simplify right side
   8,065.51x = 59,795,605.55
5. Step 5: Solve for x
   x = 59,795,605.55/8,065.51
6. Step 6: Final answer
   x = 7,413.74