Finding the Fourth Proportional to 12,041.82, 18,060.48 and 3,720.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,041.82 : 18,060.48 = 3,720.78 : x
2. Step 2: Convert to fraction form
   12,041.82/18,060.48 = 3,720.78/x
3. Step 3: Cross multiply
   12,041.82x = 18,060.48 × 3,720.78
4. Step 4: Simplify right side
   12,041.82x = 67,199,072.77
5. Step 5: Solve for x
   x = 67,199,072.77/12,041.82
6. Step 6: Final answer
   x = 5,580.47