Finding the Fourth Proportional to 105,103.58, 145,047.67 and 59,179.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,103.58 : 145,047.67 = 59,179.04 : x
2. Step 2: Convert to fraction form
   105,103.58/145,047.67 = 59,179.04/x
3. Step 3: Cross multiply
   105,103.58x = 145,047.67 × 59,179.04
4. Step 4: Simplify right side
   105,103.58x = 8,583,781,864.84
5. Step 5: Solve for x
   x = 8,583,781,864.84/105,103.58
6. Step 6: Final answer
   x = 81,669.74