Finding the Fourth Proportional to 115,870.15, 159,818.29 and 106,340.77

Step by Step Solution

1. Step 1: Write the proportion equation
   115,870.15 : 159,818.29 = 106,340.77 : x
2. Step 2: Convert to fraction form
   115,870.15/159,818.29 = 106,340.77/x
3. Step 3: Cross multiply
   115,870.15x = 159,818.29 × 106,340.77
4. Step 4: Simplify right side
   115,870.15x = 16,995,200,018.68
5. Step 5: Solve for x
   x = 16,995,200,018.68/115,870.15
6. Step 6: Final answer
   x = 146,674.53