Finding the Fourth Proportional to 10,071.41, 15,105.56 and 5,144.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,071.41 : 15,105.56 = 5,144.69 : x
2. Step 2: Convert to fraction form
   10,071.41/15,105.56 = 5,144.69/x
3. Step 3: Cross multiply
   10,071.41x = 15,105.56 × 5,144.69
4. Step 4: Simplify right side
   10,071.41x = 77,713,397.75
5. Step 5: Solve for x
   x = 77,713,397.75/10,071.41
6. Step 6: Final answer
   x = 7,716.24