Finding the Fourth Proportional to 102,828.06, 141,860.88 and 67,005

Step by Step Solution

1. Step 1: Write the proportion equation
   102,828.06 : 141,860.88 = 67,005 : x
2. Step 2: Convert to fraction form
   102,828.06/141,860.88 = 67,005/x
3. Step 3: Cross multiply
   102,828.06x = 141,860.88 × 67,005
4. Step 4: Simplify right side
   102,828.06x = 9,505,388,264.40
5. Step 5: Solve for x
   x = 9,505,388,264.40/102,828.06
6. Step 6: Final answer
   x = 92,439.63