Finding the Fourth Proportional to 123,804.42, 170,851.98 and 67,215.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,804.42 : 170,851.98 = 67,215.80 : x
2. Step 2: Convert to fraction form
   123,804.42/170,851.98 = 67,215.80/x
3. Step 3: Cross multiply
   123,804.42x = 170,851.98 × 67,215.80
4. Step 4: Simplify right side
   123,804.42x = 11,483,952,517.28
5. Step 5: Solve for x
   x = 11,483,952,517.28/123,804.42
6. Step 6: Final answer
   x = 92,758.82