Finding the Fourth Proportional to 123,983.64, 185,871.78 and 57,471.53

Step by Step Solution

1. Step 1: Write the proportion equation
   123,983.64 : 185,871.78 = 57,471.53 : x
2. Step 2: Convert to fraction form
   123,983.64/185,871.78 = 57,471.53/x
3. Step 3: Cross multiply
   123,983.64x = 185,871.78 × 57,471.53
4. Step 4: Simplify right side
   123,983.64x = 10,682,334,651.06
5. Step 5: Solve for x
   x = 10,682,334,651.06/123,983.64
6. Step 6: Final answer
   x = 86,159.23