Finding the Fourth Proportional to 12,085.41, 18,134.72 and 4,690.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,085.41 : 18,134.72 = 4,690.16 : x
2. Step 2: Convert to fraction form
   12,085.41/18,134.72 = 4,690.16/x
3. Step 3: Cross multiply
   12,085.41x = 18,134.72 × 4,690.16
4. Step 4: Simplify right side
   12,085.41x = 85,054,738.36
5. Step 5: Solve for x
   x = 85,054,738.36/12,085.41
6. Step 6: Final answer
   x = 7,037.80