Finding the Fourth Proportional to 64,857.60, 89,493.20 and 36,557.82

Step by Step Solution

1. Step 1: Write the proportion equation
   64,857.60 : 89,493.20 = 36,557.82 : x
2. Step 2: Convert to fraction form
   64,857.60/89,493.20 = 36,557.82/x
3. Step 3: Cross multiply
   64,857.60x = 89,493.20 × 36,557.82
4. Step 4: Simplify right side
   64,857.60x = 3,271,676,114.03
5. Step 5: Solve for x
   x = 3,271,676,114.03/64,857.60
6. Step 6: Final answer
   x = 50,443.99