Finding the Fourth Proportional to 64,782.38, 89,405.17 and 36,493.54

Step by Step Solution

1. Step 1: Write the proportion equation
   64,782.38 : 89,405.17 = 36,493.54 : x
2. Step 2: Convert to fraction form
   64,782.38/89,405.17 = 36,493.54/x
3. Step 3: Cross multiply
   64,782.38x = 89,405.17 × 36,493.54
4. Step 4: Simplify right side
   64,782.38x = 3,262,710,832.86
5. Step 5: Solve for x
   x = 3,262,710,832.86/64,782.38
6. Step 6: Final answer
   x = 50,364.17