Finding the Fourth Proportional to 10,075.15, 15,119.61 and 3,501.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,075.15 : 15,119.61 = 3,501.28 : x
2. Step 2: Convert to fraction form
   10,075.15/15,119.61 = 3,501.28/x
3. Step 3: Cross multiply
   10,075.15x = 15,119.61 × 3,501.28
4. Step 4: Simplify right side
   10,075.15x = 52,937,988.10
5. Step 5: Solve for x
   x = 52,937,988.10/10,075.15
6. Step 6: Final answer
   x = 5,254.31