Finding the Fourth Proportional to 13,075.32, 18,041.22 and 7,768.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,075.32 : 18,041.22 = 7,768.20 : x
2. Step 2: Convert to fraction form
   13,075.32/18,041.22 = 7,768.20/x
3. Step 3: Cross multiply
   13,075.32x = 18,041.22 × 7,768.20
4. Step 4: Simplify right side
   13,075.32x = 140,147,805.20
5. Step 5: Solve for x
   x = 140,147,805.20/13,075.32
6. Step 6: Final answer
   x = 10,718.50