Finding the Fourth Proportional to 82,408.36, 123,274.12 and 65,800.86

Step by Step Solution

1. Step 1: Write the proportion equation
   82,408.36 : 123,274.12 = 65,800.86 : x
2. Step 2: Convert to fraction form
   82,408.36/123,274.12 = 65,800.86/x
3. Step 3: Cross multiply
   82,408.36x = 123,274.12 × 65,800.86
4. Step 4: Simplify right side
   82,408.36x = 8,111,543,111.74
5. Step 5: Solve for x
   x = 8,111,543,111.74/82,408.36
6. Step 6: Final answer
   x = 98,431.07