Finding the Fourth Proportional to 82,991.92, 114,538.56 and 47,187.28

Step by Step Solution

1. Step 1: Write the proportion equation
   82,991.92 : 114,538.56 = 47,187.28 : x
2. Step 2: Convert to fraction form
   82,991.92/114,538.56 = 47,187.28/x
3. Step 3: Cross multiply
   82,991.92x = 114,538.56 × 47,187.28
4. Step 4: Simplify right side
   82,991.92x = 5,404,763,101.52
5. Step 5: Solve for x
   x = 5,404,763,101.52/82,991.92
6. Step 6: Final answer
   x = 65,123.97