Finding the Fourth Proportional to 82,078.48, 123,102.36 and 51,105.04

Step by Step Solution

1. Step 1: Write the proportion equation
   82,078.48 : 123,102.36 = 51,105.04 : x
2. Step 2: Convert to fraction form
   82,078.48/123,102.36 = 51,105.04/x
3. Step 3: Cross multiply
   82,078.48x = 123,102.36 × 51,105.04
4. Step 4: Simplify right side
   82,078.48x = 6,291,151,031.89
5. Step 5: Solve for x
   x = 6,291,151,031.89/82,078.48
6. Step 6: Final answer
   x = 76,648.00