Finding the Fourth Proportional to 64,667.78, 89,228.15 and 37,805.08

Step by Step Solution

1. Step 1: Write the proportion equation
   64,667.78 : 89,228.15 = 37,805.08 : x
2. Step 2: Convert to fraction form
   64,667.78/89,228.15 = 37,805.08/x
3. Step 3: Cross multiply
   64,667.78x = 89,228.15 × 37,805.08
4. Step 4: Simplify right side
   64,667.78x = 3,373,276,902.86
5. Step 5: Solve for x
   x = 3,373,276,902.86/64,667.78
6. Step 6: Final answer
   x = 52,163.18