Finding the Fourth Proportional to 37,640.50, 56,486.67 and 13,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,640.50 : 56,486.67 = 13,016.50 : x
2. Step 2: Convert to fraction form
   37,640.50/56,486.67 = 13,016.50/x
3. Step 3: Cross multiply
   37,640.50x = 56,486.67 × 13,016.50
4. Step 4: Simplify right side
   37,640.50x = 735,258,740.06
5. Step 5: Solve for x
   x = 735,258,740.06/37,640.50
6. Step 6: Final answer
   x = 19,533.71