Finding the Fourth Proportional to 64,361.28, 88,817.31 and 35,289.30

Step by Step Solution

1. Step 1: Write the proportion equation
   64,361.28 : 88,817.31 = 35,289.30 : x
2. Step 2: Convert to fraction form
   64,361.28/88,817.31 = 35,289.30/x
3. Step 3: Cross multiply
   64,361.28x = 88,817.31 × 35,289.30
4. Step 4: Simplify right side
   64,361.28x = 3,134,300,697.78
5. Step 5: Solve for x
   x = 3,134,300,697.78/64,361.28
6. Step 6: Final answer
   x = 48,698.55