Finding the Fourth Proportional to 123,672.94, 185,357.40 and 57,020.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,672.94 : 185,357.40 = 57,020.56 : x
2. Step 2: Convert to fraction form
   123,672.94/185,357.40 = 57,020.56/x
3. Step 3: Cross multiply
   123,672.94x = 185,357.40 × 57,020.56
4. Step 4: Simplify right side
   123,672.94x = 10,569,182,748.14
5. Step 5: Solve for x
   x = 10,569,182,748.14/123,672.94
6. Step 6: Final answer
   x = 85,460.75