Finding the Fourth Proportional to 12,071.93, 18,103.46 and 4,172.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,071.93 : 18,103.46 = 4,172.42 : x
2. Step 2: Convert to fraction form
   12,071.93/18,103.46 = 4,172.42/x
3. Step 3: Cross multiply
   12,071.93x = 18,103.46 × 4,172.42
4. Step 4: Simplify right side
   12,071.93x = 75,535,294.26
5. Step 5: Solve for x
   x = 75,535,294.26/12,071.93
6. Step 6: Final answer
   x = 6,257.10