Finding the Fourth Proportional to 12,101.06, 18,148.56 and 4,308.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,101.06 : 18,148.56 = 4,308.06 : x
2. Step 2: Convert to fraction form
   12,101.06/18,148.56 = 4,308.06/x
3. Step 3: Cross multiply
   12,101.06x = 18,148.56 × 4,308.06
4. Step 4: Simplify right side
   12,101.06x = 78,185,085.39
5. Step 5: Solve for x
   x = 78,185,085.39/12,101.06
6. Step 6: Final answer
   x = 6,461.01