Finding the Fourth Proportional to 64,911.28, 89,577.52 and 35,103.28

Step by Step Solution

1. Step 1: Write the proportion equation
   64,911.28 : 89,577.52 = 35,103.28 : x
2. Step 2: Convert to fraction form
   64,911.28/89,577.52 = 35,103.28/x
3. Step 3: Cross multiply
   64,911.28x = 89,577.52 × 35,103.28
4. Step 4: Simplify right side
   64,911.28x = 3,144,464,766.27
5. Step 5: Solve for x
   x = 3,144,464,766.27/64,911.28
6. Step 6: Final answer
   x = 48,442.50