Finding the Fourth Proportional to 64,568.48, 89,100.42 and 37,718.60

Step by Step Solution

1. Step 1: Write the proportion equation
   64,568.48 : 89,100.42 = 37,718.60 : x
2. Step 2: Convert to fraction form
   64,568.48/89,100.42 = 37,718.60/x
3. Step 3: Cross multiply
   64,568.48x = 89,100.42 × 37,718.60
4. Step 4: Simplify right side
   64,568.48x = 3,360,743,101.81
5. Step 5: Solve for x
   x = 3,360,743,101.81/64,568.48
6. Step 6: Final answer
   x = 52,049.28