Finding the Fourth Proportional to 12,160.72, 18,244.32 and 3,840.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,160.72 : 18,244.32 = 3,840.94 : x
2. Step 2: Convert to fraction form
   12,160.72/18,244.32 = 3,840.94/x
3. Step 3: Cross multiply
   12,160.72x = 18,244.32 × 3,840.94
4. Step 4: Simplify right side
   12,160.72x = 70,075,338.46
5. Step 5: Solve for x
   x = 70,075,338.46/12,160.72
6. Step 6: Final answer
   x = 5,762.43