Finding the Fourth Proportional to 64,713.49, 89,287.18 and 37,862.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,713.49 : 89,287.18 = 37,862.60 : x
2. Step 2: Convert to fraction form
   64,713.49/89,287.18 = 37,862.60/x
3. Step 3: Cross multiply
   64,713.49x = 89,287.18 × 37,862.60
4. Step 4: Simplify right side
   64,713.49x = 3,380,644,145.72
5. Step 5: Solve for x
   x = 3,380,644,145.72/64,713.49
6. Step 6: Final answer
   x = 52,240.18