Finding the Fourth Proportional to 102,871.87, 141,991.71 and 59,859.65

Step by Step Solution

1. Step 1: Write the proportion equation
   102,871.87 : 141,991.71 = 59,859.65 : x
2. Step 2: Convert to fraction form
   102,871.87/141,991.71 = 59,859.65/x
3. Step 3: Cross multiply
   102,871.87x = 141,991.71 × 59,859.65
4. Step 4: Simplify right side
   102,871.87x = 8,499,574,063.50
5. Step 5: Solve for x
   x = 8,499,574,063.50/102,871.87
6. Step 6: Final answer
   x = 82,622.92