Finding the Fourth Proportional to 64,644.75, 89,220.71 and 37,416.89

Step by Step Solution

1. Step 1: Write the proportion equation
   64,644.75 : 89,220.71 = 37,416.89 : x
2. Step 2: Convert to fraction form
   64,644.75/89,220.71 = 37,416.89/x
3. Step 3: Cross multiply
   64,644.75x = 89,220.71 × 37,416.89
4. Step 4: Simplify right side
   64,644.75x = 3,338,361,808.39
5. Step 5: Solve for x
   x = 3,338,361,808.39/64,644.75
6. Step 6: Final answer
   x = 51,641.65