Finding the Fourth Proportional to 12,056.67, 18,085.05 and 3,291.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,056.67 : 18,085.05 = 3,291.30 : x
2. Step 2: Convert to fraction form
   12,056.67/18,085.05 = 3,291.30/x
3. Step 3: Cross multiply
   12,056.67x = 18,085.05 × 3,291.30
4. Step 4: Simplify right side
   12,056.67x = 59,523,325.07
5. Step 5: Solve for x
   x = 59,523,325.07/12,056.67
6. Step 6: Final answer
   x = 4,936.96