Finding the Fourth Proportional to 12,047.36, 18,071.17 and 4,250.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,047.36 : 18,071.17 = 4,250.70 : x
2. Step 2: Convert to fraction form
   12,047.36/18,071.17 = 4,250.70/x
3. Step 3: Cross multiply
   12,047.36x = 18,071.17 × 4,250.70
4. Step 4: Simplify right side
   12,047.36x = 76,815,111.69
5. Step 5: Solve for x
   x = 76,815,111.69/12,047.36
6. Step 6: Final answer
   x = 6,376.10