Finding the Fourth Proportional to 64,906.31, 89,570.72 and 35,098.31

Step by Step Solution

1. Step 1: Write the proportion equation
   64,906.31 : 89,570.72 = 35,098.31 : x
2. Step 2: Convert to fraction form
   64,906.31/89,570.72 = 35,098.31/x
3. Step 3: Cross multiply
   64,906.31x = 89,570.72 × 35,098.31
4. Step 4: Simplify right side
   64,906.31x = 3,143,781,209.16
5. Step 5: Solve for x
   x = 3,143,781,209.16/64,906.31
6. Step 6: Final answer
   x = 48,435.68