Finding the Fourth Proportional to 64,849.21, 89,496.02 and 36,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,849.21 : 89,496.02 = 36,556.72 : x
2. Step 2: Convert to fraction form
   64,849.21/89,496.02 = 36,556.72/x
3. Step 3: Cross multiply
   64,849.21x = 89,496.02 × 36,556.72
4. Step 4: Simplify right side
   64,849.21x = 3,271,680,811.91
5. Step 5: Solve for x
   x = 3,271,680,811.91/64,849.21
6. Step 6: Final answer
   x = 50,450.59