Finding the Fourth Proportional to 64,658.78, 89,215.74 and 37,796.09

Step by Step Solution

1. Step 1: Write the proportion equation
   64,658.78 : 89,215.74 = 37,796.09 : x
2. Step 2: Convert to fraction form
   64,658.78/89,215.74 = 37,796.09/x
3. Step 3: Cross multiply
   64,658.78x = 89,215.74 × 37,796.09
4. Step 4: Simplify right side
   64,658.78x = 3,372,006,138.46
5. Step 5: Solve for x
   x = 3,372,006,138.46/64,658.78
6. Step 6: Final answer
   x = 52,150.79