Finding the Fourth Proportional to 38,131.60, 57,183.27 and 13,164.87

Step by Step Solution

1. Step 1: Write the proportion equation
   38,131.60 : 57,183.27 = 13,164.87 : x
2. Step 2: Convert to fraction form
   38,131.60/57,183.27 = 13,164.87/x
3. Step 3: Cross multiply
   38,131.60x = 57,183.27 × 13,164.87
4. Step 4: Simplify right side
   38,131.60x = 752,810,315.72
5. Step 5: Solve for x
   x = 752,810,315.72/38,131.60
6. Step 6: Final answer
   x = 19,742.43