Finding the Fourth Proportional to 105,111.09, 145,056.48 and 59,795.57

Step by Step Solution

1. Step 1: Write the proportion equation
   105,111.09 : 145,056.48 = 59,795.57 : x
2. Step 2: Convert to fraction form
   105,111.09/145,056.48 = 59,795.57/x
3. Step 3: Cross multiply
   105,111.09x = 145,056.48 × 59,795.57
4. Step 4: Simplify right side
   105,111.09x = 8,673,734,903.79
5. Step 5: Solve for x
   x = 8,673,734,903.79/105,111.09
6. Step 6: Final answer
   x = 82,519.69