Finding the Fourth Proportional to 64,955.25, 89,638.52 and 35,147.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,955.25 : 89,638.52 = 35,147.25 : x
2. Step 2: Convert to fraction form
   64,955.25/89,638.52 = 35,147.25/x
3. Step 3: Cross multiply
   64,955.25x = 89,638.52 × 35,147.25
4. Step 4: Simplify right side
   64,955.25x = 3,150,547,296.33
5. Step 5: Solve for x
   x = 3,150,547,296.33/64,955.25
6. Step 6: Final answer
   x = 48,503.35