Finding the Fourth Proportional to 82,696.80, 123,671.34 and 63,719.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,696.80 : 123,671.34 = 63,719.10 : x
2. Step 2: Convert to fraction form
   82,696.80/123,671.34 = 63,719.10/x
3. Step 3: Cross multiply
   82,696.80x = 123,671.34 × 63,719.10
4. Step 4: Simplify right side
   82,696.80x = 7,880,226,480.59
5. Step 5: Solve for x
   x = 7,880,226,480.59/82,696.80
6. Step 6: Final answer
   x = 95,290.59