Finding the Fourth Proportional to 12,056.96, 18,085.41 and 3,291.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,056.96 : 18,085.41 = 3,291.86 : x
2. Step 2: Convert to fraction form
   12,056.96/18,085.41 = 3,291.86/x
3. Step 3: Cross multiply
   12,056.96x = 18,085.41 × 3,291.86
4. Step 4: Simplify right side
   12,056.96x = 59,534,637.76
5. Step 5: Solve for x
   x = 59,534,637.76/12,056.96
6. Step 6: Final answer
   x = 4,937.78