Finding the Fourth Proportional to 124,669.34, 187,020.16 and 57,185.10

Step by Step Solution

1. Step 1: Write the proportion equation
   124,669.34 : 187,020.16 = 57,185.10 : x
2. Step 2: Convert to fraction form
   124,669.34/187,020.16 = 57,185.10/x
3. Step 3: Cross multiply
   124,669.34x = 187,020.16 × 57,185.10
4. Step 4: Simplify right side
   124,669.34x = 10,694,766,551.62
5. Step 5: Solve for x
   x = 10,694,766,551.62/124,669.34
6. Step 6: Final answer
   x = 85,785.06