Finding the Fourth Proportional to 64,658.81, 89,215.78 and 37,796.12

Step by Step Solution

1. Step 1: Write the proportion equation
   64,658.81 : 89,215.78 = 37,796.12 : x
2. Step 2: Convert to fraction form
   64,658.81/89,215.78 = 37,796.12/x
3. Step 3: Cross multiply
   64,658.81x = 89,215.78 × 37,796.12
4. Step 4: Simplify right side
   64,658.81x = 3,372,010,326.77
5. Step 5: Solve for x
   x = 3,372,010,326.77/64,658.81
6. Step 6: Final answer
   x = 52,150.83