Finding the Fourth Proportional to 123,784.65, 185,647.23 and 57,160.71

Step by Step Solution

1. Step 1: Write the proportion equation
   123,784.65 : 185,647.23 = 57,160.71 : x
2. Step 2: Convert to fraction form
   123,784.65/185,647.23 = 57,160.71/x
3. Step 3: Cross multiply
   123,784.65x = 185,647.23 × 57,160.71
4. Step 4: Simplify right side
   123,784.65x = 10,611,727,476.33
5. Step 5: Solve for x
   x = 10,611,727,476.33/123,784.65
6. Step 6: Final answer
   x = 85,727.33