Finding the Fourth Proportional to 82,403.30, 123,463.69 and 55,334.90

Step by Step Solution

1. Step 1: Write the proportion equation
   82,403.30 : 123,463.69 = 55,334.90 : x
2. Step 2: Convert to fraction form
   82,403.30/123,463.69 = 55,334.90/x
3. Step 3: Cross multiply
   82,403.30x = 123,463.69 × 55,334.90
4. Step 4: Simplify right side
   82,403.30x = 6,831,851,110.10
5. Step 5: Solve for x
   x = 6,831,851,110.10/82,403.30
6. Step 6: Final answer
   x = 82,907.49