Finding the Fourth Proportional to 12,111.94, 18,173.94 and 5,536.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.94 : 18,173.94 = 5,536.72 : x
2. Step 2: Convert to fraction form
   12,111.94/18,173.94 = 5,536.72/x
3. Step 3: Cross multiply
   12,111.94x = 18,173.94 × 5,536.72
4. Step 4: Simplify right side
   12,111.94x = 100,624,017.08
5. Step 5: Solve for x
   x = 100,624,017.08/12,111.94
6. Step 6: Final answer
   x = 8,307.84