Finding the Fourth Proportional to 82,443.10, 123,518.85 and 69,904.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,443.10 : 123,518.85 = 69,904.30 : x
2. Step 2: Convert to fraction form
   82,443.10/123,518.85 = 69,904.30/x
3. Step 3: Cross multiply
   82,443.10x = 123,518.85 × 69,904.30
4. Step 4: Simplify right side
   82,443.10x = 8,634,498,746.06
5. Step 5: Solve for x
   x = 8,634,498,746.06/82,443.10
6. Step 6: Final answer
   x = 104,732.82