Finding the Fourth Proportional to 105,175.94, 145,155.57 and 59,865.08

Step by Step Solution

1. Step 1: Write the proportion equation
   105,175.94 : 145,155.57 = 59,865.08 : x
2. Step 2: Convert to fraction form
   105,175.94/145,155.57 = 59,865.08/x
3. Step 3: Cross multiply
   105,175.94x = 145,155.57 × 59,865.08
4. Step 4: Simplify right side
   105,175.94x = 8,689,749,810.50
5. Step 5: Solve for x
   x = 8,689,749,810.50/105,175.94
6. Step 6: Final answer
   x = 82,621.08