Finding the Fourth Proportional to 12,071.42, 18,102.69 and 4,171.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,071.42 : 18,102.69 = 4,171.93 : x
2. Step 2: Convert to fraction form
   12,071.42/18,102.69 = 4,171.93/x
3. Step 3: Cross multiply
   12,071.42x = 18,102.69 × 4,171.93
4. Step 4: Simplify right side
   12,071.42x = 75,523,155.49
5. Step 5: Solve for x
   x = 75,523,155.49/12,071.42
6. Step 6: Final answer
   x = 6,256.36