Finding the Fourth Proportional to 10,075.82, 15,113.72 and 2,680.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,075.82 : 15,113.72 = 2,680.29 : x
2. Step 2: Convert to fraction form
   10,075.82/15,113.72 = 2,680.29/x
3. Step 3: Cross multiply
   10,075.82x = 15,113.72 × 2,680.29
4. Step 4: Simplify right side
   10,075.82x = 40,509,139.18
5. Step 5: Solve for x
   x = 40,509,139.18/10,075.82
6. Step 6: Final answer
   x = 4,020.43