Finding the Fourth Proportional to 12,767.23, 19,140.49 and 5,742.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,767.23 : 19,140.49 = 5,742.10 : x
2. Step 2: Convert to fraction form
   12,767.23/19,140.49 = 5,742.10/x
3. Step 3: Cross multiply
   12,767.23x = 19,140.49 × 5,742.10
4. Step 4: Simplify right side
   12,767.23x = 109,906,607.63
5. Step 5: Solve for x
   x = 109,906,607.63/12,767.23
6. Step 6: Final answer
   x = 8,608.49