Finding the Fourth Proportional to 82,518.54, 123,661.17 and 40,994.70

Step by Step Solution

1. Step 1: Write the proportion equation
   82,518.54 : 123,661.17 = 40,994.70 : x
2. Step 2: Convert to fraction form
   82,518.54/123,661.17 = 40,994.70/x
3. Step 3: Cross multiply
   82,518.54x = 123,661.17 × 40,994.70
4. Step 4: Simplify right side
   82,518.54x = 5,069,452,565.80
5. Step 5: Solve for x
   x = 5,069,452,565.80/82,518.54
6. Step 6: Final answer
   x = 61,434.10