Finding the Fourth Proportional to 123,683.94, 185,373.90 and 57,031.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,683.94 : 185,373.90 = 57,031.56 : x
2. Step 2: Convert to fraction form
   123,683.94/185,373.90 = 57,031.56/x
3. Step 3: Cross multiply
   123,683.94x = 185,373.90 × 57,031.56
4. Step 4: Simplify right side
   123,683.94x = 10,572,162,700.28
5. Step 5: Solve for x
   x = 10,572,162,700.28/123,683.94
6. Step 6: Final answer
   x = 85,477.25