Finding the Fourth Proportional to 81,947.69, 113,089.95 and 46,139.02

Step by Step Solution

1. Step 1: Write the proportion equation
   81,947.69 : 113,089.95 = 46,139.02 : x
2. Step 2: Convert to fraction form
   81,947.69/113,089.95 = 46,139.02/x
3. Step 3: Cross multiply
   81,947.69x = 113,089.95 × 46,139.02
4. Step 4: Simplify right side
   81,947.69x = 5,217,859,464.85
5. Step 5: Solve for x
   x = 5,217,859,464.85/81,947.69
6. Step 6: Final answer
   x = 63,673.05