Finding the Fourth Proportional to 124,146.36, 186,219.69 and 57,577.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,146.36 : 186,219.69 = 57,577.72 : x
2. Step 2: Convert to fraction form
   124,146.36/186,219.69 = 57,577.72/x
3. Step 3: Cross multiply
   124,146.36x = 186,219.69 × 57,577.72
4. Step 4: Simplify right side
   124,146.36x = 10,722,105,169.31
5. Step 5: Solve for x
   x = 10,722,105,169.31/124,146.36
6. Step 6: Final answer
   x = 86,366.65