Finding the Fourth Proportional to 123,748.73, 185,593.33 and 57,124.85

Step by Step Solution

1. Step 1: Write the proportion equation
   123,748.73 : 185,593.33 = 57,124.85 : x
2. Step 2: Convert to fraction form
   123,748.73/185,593.33 = 57,124.85/x
3. Step 3: Cross multiply
   123,748.73x = 185,593.33 × 57,124.85
4. Step 4: Simplify right side
   123,748.73x = 10,601,990,851.63
5. Step 5: Solve for x
   x = 10,601,990,851.63/123,748.73
6. Step 6: Final answer
   x = 85,673.54