Finding the Fourth Proportional to 82,945.76, 114,477 and 47,128.64

Step by Step Solution

1. Step 1: Write the proportion equation
   82,945.76 : 114,477 = 47,128.64 : x
2. Step 2: Convert to fraction form
   82,945.76/114,477 = 47,128.64/x
3. Step 3: Cross multiply
   82,945.76x = 114,477 × 47,128.64
4. Step 4: Simplify right side
   82,945.76x = 5,395,145,321.28
5. Step 5: Solve for x
   x = 5,395,145,321.28/82,945.76
6. Step 6: Final answer
   x = 65,044.26