Finding the Fourth Proportional to 10,070.82, 15,105 and 5,144.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,070.82 : 15,105 = 5,144.01 : x
2. Step 2: Convert to fraction form
   10,070.82/15,105 = 5,144.01/x
3. Step 3: Cross multiply
   10,070.82x = 15,105 × 5,144.01
4. Step 4: Simplify right side
   10,070.82x = 77,700,271.05
5. Step 5: Solve for x
   x = 77,700,271.05/10,070.82
6. Step 6: Final answer
   x = 7,715.39