Finding the Fourth Proportional to 64,540.08, 89,049.60 and 37,667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   64,540.08 : 89,049.60 = 37,667.28 : x
2. Step 2: Convert to fraction form
   64,540.08/89,049.60 = 37,667.28/x
3. Step 3: Cross multiply
   64,540.08x = 89,049.60 × 37,667.28
4. Step 4: Simplify right side
   64,540.08x = 3,354,256,217.09
5. Step 5: Solve for x
   x = 3,354,256,217.09/64,540.08
6. Step 6: Final answer
   x = 51,971.68