Finding the Fourth Proportional to 82,399.37, 123,457.77 and 55,330.97

Step by Step Solution

1. Step 1: Write the proportion equation
   82,399.37 : 123,457.77 = 55,330.97 : x
2. Step 2: Convert to fraction form
   82,399.37/123,457.77 = 55,330.97/x
3. Step 3: Cross multiply
   82,399.37x = 123,457.77 × 55,330.97
4. Step 4: Simplify right side
   82,399.37x = 6,831,037,758.34
5. Step 5: Solve for x
   x = 6,831,037,758.34/82,399.37
6. Step 6: Final answer
   x = 82,901.58