Finding the Fourth Proportional to 82,407.36, 123,272.63 and 65,799.87

Step by Step Solution

1. Step 1: Write the proportion equation
   82,407.36 : 123,272.63 = 65,799.87 : x
2. Step 2: Convert to fraction form
   82,407.36/123,272.63 = 65,799.87/x
3. Step 3: Cross multiply
   82,407.36x = 123,272.63 × 65,799.87
4. Step 4: Simplify right side
   82,407.36x = 8,111,323,028.56
5. Step 5: Solve for x
   x = 8,111,323,028.56/82,407.36
6. Step 6: Final answer
   x = 98,429.59