Finding the Fourth Proportional to 37,096.36, 55,646.76 and 12,139

Step by Step Solution

1. Step 1: Write the proportion equation
   37,096.36 : 55,646.76 = 12,139 : x
2. Step 2: Convert to fraction form
   37,096.36/55,646.76 = 12,139/x
3. Step 3: Cross multiply
   37,096.36x = 55,646.76 × 12,139
4. Step 4: Simplify right side
   37,096.36x = 675,496,019.64
5. Step 5: Solve for x
   x = 675,496,019.64/37,096.36
6. Step 6: Final answer
   x = 18,209.23