Finding the Fourth Proportional to 10,112.68, 13,955.94 and 5,636.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,112.68 : 13,955.94 = 5,636.68 : x
2. Step 2: Convert to fraction form
   10,112.68/13,955.94 = 5,636.68/x
3. Step 3: Cross multiply
   10,112.68x = 13,955.94 × 5,636.68
4. Step 4: Simplify right side
   10,112.68x = 78,665,167.88
5. Step 5: Solve for x
   x = 78,665,167.88/10,112.68
6. Step 6: Final answer
   x = 7,778.86