Finding the Fourth Proportional to 105,872.74, 146,040.18 and 62,823.87

Step by Step Solution

1. Step 1: Write the proportion equation
   105,872.74 : 146,040.18 = 62,823.87 : x
2. Step 2: Convert to fraction form
   105,872.74/146,040.18 = 62,823.87/x
3. Step 3: Cross multiply
   105,872.74x = 146,040.18 × 62,823.87
4. Step 4: Simplify right side
   105,872.74x = 9,174,809,400.89
5. Step 5: Solve for x
   x = 9,174,809,400.89/105,872.74
6. Step 6: Final answer
   x = 86,658.85