Finding the Fourth Proportional to 72,361.98, 108,485 and 34,392.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,361.98 : 108,485 = 34,392.18 : x
2. Step 2: Convert to fraction form
   72,361.98/108,485 = 34,392.18/x
3. Step 3: Cross multiply
   72,361.98x = 108,485 × 34,392.18
4. Step 4: Simplify right side
   72,361.98x = 3,731,035,647.30
5. Step 5: Solve for x
   x = 3,731,035,647.30/72,361.98
6. Step 6: Final answer
   x = 51,560.72