Finding the Fourth Proportional to 12,077.56, 18,111.18 and 3,755.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,077.56 : 18,111.18 = 3,755.56 : x
2. Step 2: Convert to fraction form
   12,077.56/18,111.18 = 3,755.56/x
3. Step 3: Cross multiply
   12,077.56x = 18,111.18 × 3,755.56
4. Step 4: Simplify right side
   12,077.56x = 68,017,623.16
5. Step 5: Solve for x
   x = 68,017,623.16/12,077.56
6. Step 6: Final answer
   x = 5,631.74