Finding the Fourth Proportional to 37,667.16, 56,431.89 and 17,639.91

Step by Step Solution

1. Step 1: Write the proportion equation
   37,667.16 : 56,431.89 = 17,639.91 : x
2. Step 2: Convert to fraction form
   37,667.16/56,431.89 = 17,639.91/x
3. Step 3: Cross multiply
   37,667.16x = 56,431.89 × 17,639.91
4. Step 4: Simplify right side
   37,667.16x = 995,453,460.73
5. Step 5: Solve for x
   x = 995,453,460.73/37,667.16
6. Step 6: Final answer
   x = 26,427.62