Finding the Fourth Proportional to 105,085.63, 145,018.02 and 67,359.88

Step by Step Solution

1. Step 1: Write the proportion equation
   105,085.63 : 145,018.02 = 67,359.88 : x
2. Step 2: Convert to fraction form
   105,085.63/145,018.02 = 67,359.88/x
3. Step 3: Cross multiply
   105,085.63x = 145,018.02 × 67,359.88
4. Step 4: Simplify right side
   105,085.63x = 9,768,396,425.04
5. Step 5: Solve for x
   x = 9,768,396,425.04/105,085.63
6. Step 6: Final answer
   x = 92,956.54