Finding the Fourth Proportional to 64,870.64, 89,521.50 and 36,576.33

Step by Step Solution

1. Step 1: Write the proportion equation
   64,870.64 : 89,521.50 = 36,576.33 : x
2. Step 2: Convert to fraction form
   64,870.64/89,521.50 = 36,576.33/x
3. Step 3: Cross multiply
   64,870.64x = 89,521.50 × 36,576.33
4. Step 4: Simplify right side
   64,870.64x = 3,274,367,926.10
5. Step 5: Solve for x
   x = 3,274,367,926.10/64,870.64
6. Step 6: Final answer
   x = 50,475.35