Finding the Fourth Proportional to 51,047.49, 76,574.89 and 13,607.37

Step by Step Solution

1. Step 1: Write the proportion equation
   51,047.49 : 76,574.89 = 13,607.37 : x
2. Step 2: Convert to fraction form
   51,047.49/76,574.89 = 13,607.37/x
3. Step 3: Cross multiply
   51,047.49x = 76,574.89 × 13,607.37
4. Step 4: Simplify right side
   51,047.49x = 1,041,982,826.92
5. Step 5: Solve for x
   x = 1,041,982,826.92/51,047.49
6. Step 6: Final answer
   x = 20,412.03