Finding the Fourth Proportional to 105,623.83, 145,780.02 and 67,395.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,623.83 : 145,780.02 = 67,395.25 : x
2. Step 2: Convert to fraction form
   105,623.83/145,780.02 = 67,395.25/x
3. Step 3: Cross multiply
   105,623.83x = 145,780.02 × 67,395.25
4. Step 4: Simplify right side
   105,623.83x = 9,824,880,892.91
5. Step 5: Solve for x
   x = 9,824,880,892.91/105,623.83
6. Step 6: Final answer
   x = 93,017.65