Finding the Fourth Proportional to 105,084.76, 145,016.98 and 67,359.10

Step by Step Solution

1. Step 1: Write the proportion equation
   105,084.76 : 145,016.98 = 67,359.10 : x
2. Step 2: Convert to fraction form
   105,084.76/145,016.98 = 67,359.10/x
3. Step 3: Cross multiply
   105,084.76x = 145,016.98 × 67,359.10
4. Step 4: Simplify right side
   105,084.76x = 9,768,213,257.52
5. Step 5: Solve for x
   x = 9,768,213,257.52/105,084.76
6. Step 6: Final answer
   x = 92,955.57