Finding the Fourth Proportional to 82,815.18, 114,295.28 and 47,016.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,815.18 : 114,295.28 = 47,016.78 : x
2. Step 2: Convert to fraction form
   82,815.18/114,295.28 = 47,016.78/x
3. Step 3: Cross multiply
   82,815.18x = 114,295.28 × 47,016.78
4. Step 4: Simplify right side
   82,815.18x = 5,373,796,034.80
5. Step 5: Solve for x
   x = 5,373,796,034.80/82,815.18
6. Step 6: Final answer
   x = 64,889.02