Finding the Fourth Proportional to 12,774.31, 19,162.27 and 4,009.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,774.31 : 19,162.27 = 4,009.57 : x
2. Step 2: Convert to fraction form
   12,774.31/19,162.27 = 4,009.57/x
3. Step 3: Cross multiply
   12,774.31x = 19,162.27 × 4,009.57
4. Step 4: Simplify right side
   12,774.31x = 76,832,420.03
5. Step 5: Solve for x
   x = 76,832,420.03/12,774.31
6. Step 6: Final answer
   x = 6,014.61