Finding the Fourth Proportional to 81,945.12, 113,084.24 and 47,960.08

Step by Step Solution

1. Step 1: Write the proportion equation
   81,945.12 : 113,084.24 = 47,960.08 : x
2. Step 2: Convert to fraction form
   81,945.12/113,084.24 = 47,960.08/x
3. Step 3: Cross multiply
   81,945.12x = 113,084.24 × 47,960.08
4. Step 4: Simplify right side
   81,945.12x = 5,423,528,976.59
5. Step 5: Solve for x
   x = 5,423,528,976.59/81,945.12
6. Step 6: Final answer
   x = 66,184.89