Finding the Fourth Proportional to 146,304.89, 219,581.91 and 57,620.69

Step by Step Solution

1. Step 1: Write the proportion equation
   146,304.89 : 219,581.91 = 57,620.69 : x
2. Step 2: Convert to fraction form
   146,304.89/219,581.91 = 57,620.69/x
3. Step 3: Cross multiply
   146,304.89x = 219,581.91 × 57,620.69
4. Step 4: Simplify right side
   146,304.89x = 12,652,460,067.81
5. Step 5: Solve for x
   x = 12,652,460,067.81/146,304.89
6. Step 6: Final answer
   x = 86,480.09