Finding the Fourth Proportional to 82,603.90, 123,918.81 and 49,361.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,603.90 : 123,918.81 = 49,361.50 : x
2. Step 2: Convert to fraction form
   82,603.90/123,918.81 = 49,361.50/x
3. Step 3: Cross multiply
   82,603.90x = 123,918.81 × 49,361.50
4. Step 4: Simplify right side
   82,603.90x = 6,116,818,339.82
5. Step 5: Solve for x
   x = 6,116,818,339.82/82,603.90
6. Step 6: Final answer
   x = 74,049.99