Finding the Fourth Proportional to 82,256.48, 123,197.38 and 64,375.60

Step by Step Solution

1. Step 1: Write the proportion equation
   82,256.48 : 123,197.38 = 64,375.60 : x
2. Step 2: Convert to fraction form
   82,256.48/123,197.38 = 64,375.60/x
3. Step 3: Cross multiply
   82,256.48x = 123,197.38 × 64,375.60
4. Step 4: Simplify right side
   82,256.48x = 7,930,905,255.93
5. Step 5: Solve for x
   x = 7,930,905,255.93/82,256.48
6. Step 6: Final answer
   x = 96,416.78