Finding the Fourth Proportional to 82,256.58, 123,451.70 and 42,824.97

Step by Step Solution

1. Step 1: Write the proportion equation
   82,256.58 : 123,451.70 = 42,824.97 : x
2. Step 2: Convert to fraction form
   82,256.58/123,451.70 = 42,824.97/x
3. Step 3: Cross multiply
   82,256.58x = 123,451.70 × 42,824.97
4. Step 4: Simplify right side
   82,256.58x = 5,286,815,134.82
5. Step 5: Solve for x
   x = 5,286,815,134.82/82,256.58
6. Step 6: Final answer
   x = 64,272.25