Finding the Fourth Proportional to 64,495.83, 89,001.25 and 35,817.31

Step by Step Solution

1. Step 1: Write the proportion equation
   64,495.83 : 89,001.25 = 35,817.31 : x
2. Step 2: Convert to fraction form
   64,495.83/89,001.25 = 35,817.31/x
3. Step 3: Cross multiply
   64,495.83x = 89,001.25 × 35,817.31
4. Step 4: Simplify right side
   64,495.83x = 3,187,785,361.64
5. Step 5: Solve for x
   x = 3,187,785,361.64/64,495.83
6. Step 6: Final answer
   x = 49,426.22