Finding the Fourth Proportional to 83,286.48, 114,921.72 and 47,477.16

Step by Step Solution

1. Step 1: Write the proportion equation
   83,286.48 : 114,921.72 = 47,477.16 : x
2. Step 2: Convert to fraction form
   83,286.48/114,921.72 = 47,477.16/x
3. Step 3: Cross multiply
   83,286.48x = 114,921.72 × 47,477.16
4. Step 4: Simplify right side
   83,286.48x = 5,456,156,887.92
5. Step 5: Solve for x
   x = 5,456,156,887.92/83,286.48
6. Step 6: Final answer
   x = 65,510.72