Finding the Fourth Proportional to 123,922.78, 185,634.69 and 57,271.12

Step by Step Solution

1. Step 1: Write the proportion equation
   123,922.78 : 185,634.69 = 57,271.12 : x
2. Step 2: Convert to fraction form
   123,922.78/185,634.69 = 57,271.12/x
3. Step 3: Cross multiply
   123,922.78x = 185,634.69 × 57,271.12
4. Step 4: Simplify right side
   123,922.78x = 10,631,506,607.15
5. Step 5: Solve for x
   x = 10,631,506,607.15/123,922.78
6. Step 6: Final answer
   x = 85,791.38