Finding the Fourth Proportional to 82,147.13, 123,257.75 and 47,086.82

Step by Step Solution

1. Step 1: Write the proportion equation
   82,147.13 : 123,257.75 = 47,086.82 : x
2. Step 2: Convert to fraction form
   82,147.13/123,257.75 = 47,086.82/x
3. Step 3: Cross multiply
   82,147.13x = 123,257.75 × 47,086.82
4. Step 4: Simplify right side
   82,147.13x = 5,803,814,636.13
5. Step 5: Solve for x
   x = 5,803,814,636.13/82,147.13
6. Step 6: Final answer
   x = 70,651.46