Finding the Fourth Proportional to 10,111.97, 13,954.01 and 5,636.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111.97 : 13,954.01 = 5,636.12 : x
2. Step 2: Convert to fraction form
   10,111.97/13,954.01 = 5,636.12/x
3. Step 3: Cross multiply
   10,111.97x = 13,954.01 × 5,636.12
4. Step 4: Simplify right side
   10,111.97x = 78,646,376.89
5. Step 5: Solve for x
   x = 78,646,376.89/10,111.97
6. Step 6: Final answer
   x = 7,777.55