Finding the Fourth Proportional to 105,104.15, 145,046.93 and 59,788.70

Step by Step Solution

1. Step 1: Write the proportion equation
   105,104.15 : 145,046.93 = 59,788.70 : x
2. Step 2: Convert to fraction form
   105,104.15/145,046.93 = 59,788.70/x
3. Step 3: Cross multiply
   105,104.15x = 145,046.93 × 59,788.70
4. Step 4: Simplify right side
   105,104.15x = 8,672,167,383.69
5. Step 5: Solve for x
   x = 8,672,167,383.69/105,104.15
6. Step 6: Final answer
   x = 82,510.23