Finding the Fourth Proportional to 123,818.88, 170,212.92 and 106,528.32

Step by Step Solution

1. Step 1: Write the proportion equation
   123,818.88 : 170,212.92 = 106,528.32 : x
2. Step 2: Convert to fraction form
   123,818.88/170,212.92 = 106,528.32/x
3. Step 3: Cross multiply
   123,818.88x = 170,212.92 × 106,528.32
4. Step 4: Simplify right side
   123,818.88x = 18,132,496,409.89
5. Step 5: Solve for x
   x = 18,132,496,409.89/123,818.88
6. Step 6: Final answer
   x = 146,443.71