Finding the Fourth Proportional to 105,011.50, 144,910.60 and 59,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,011.50 : 144,910.60 = 59,683.50 : x
2. Step 2: Convert to fraction form
   105,011.50/144,910.60 = 59,683.50/x
3. Step 3: Cross multiply
   105,011.50x = 144,910.60 × 59,683.50
4. Step 4: Simplify right side
   105,011.50x = 8,648,771,795.10
5. Step 5: Solve for x
   x = 8,648,771,795.10/105,011.50
6. Step 6: Final answer
   x = 82,360.23