Finding the Fourth Proportional to 123,805.32, 185,678.28 and 57,181.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,805.32 : 185,678.28 = 57,181.56 : x
2. Step 2: Convert to fraction form
   123,805.32/185,678.28 = 57,181.56/x
3. Step 3: Cross multiply
   123,805.32x = 185,678.28 × 57,181.56
4. Step 4: Simplify right side
   123,805.32x = 10,617,373,708.52
5. Step 5: Solve for x
   x = 10,617,373,708.52/123,805.32
6. Step 6: Final answer
   x = 85,758.62