Finding the Fourth Proportional to 123,806.32, 185,679.78 and 57,182.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,806.32 : 185,679.78 = 57,182.56 : x
2. Step 2: Convert to fraction form
   123,806.32/185,679.78 = 57,182.56/x
3. Step 3: Cross multiply
   123,806.32x = 185,679.78 × 57,182.56
4. Step 4: Simplify right side
   123,806.32x = 10,617,645,160.64
5. Step 5: Solve for x
   x = 10,617,645,160.64/123,806.32
6. Step 6: Final answer
   x = 85,760.12