Finding the Fourth Proportional to 81,694.72, 122,658.72 and 46,676.80

Step by Step Solution

1. Step 1: Write the proportion equation
   81,694.72 : 122,658.72 = 46,676.80 : x
2. Step 2: Convert to fraction form
   81,694.72/122,658.72 = 46,676.80/x
3. Step 3: Cross multiply
   81,694.72x = 122,658.72 × 46,676.80
4. Step 4: Simplify right side
   81,694.72x = 5,725,316,541.70
5. Step 5: Solve for x
   x = 5,725,316,541.70/81,694.72
6. Step 6: Final answer
   x = 70,081.84