Finding the Fourth Proportional to 12,072.50, 18,111.18 and 4,175.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,072.50 : 18,111.18 = 4,175.32 : x
2. Step 2: Convert to fraction form
   12,072.50/18,111.18 = 4,175.32/x
3. Step 3: Cross multiply
   12,072.50x = 18,111.18 × 4,175.32
4. Step 4: Simplify right side
   12,072.50x = 75,619,972.08
5. Step 5: Solve for x
   x = 75,619,972.08/12,072.50
6. Step 6: Final answer
   x = 6,263.82