Finding the Fourth Proportional to 124,144.05, 186,234.61 and 57,590.91

Step by Step Solution

1. Step 1: Write the proportion equation
   124,144.05 : 186,234.61 = 57,590.91 : x
2. Step 2: Convert to fraction form
   124,144.05/186,234.61 = 57,590.91/x
3. Step 3: Cross multiply
   124,144.05x = 186,234.61 × 57,590.91
4. Step 4: Simplify right side
   124,144.05x = 10,725,419,860.65
5. Step 5: Solve for x
   x = 10,725,419,860.65/124,144.05
6. Step 6: Final answer
   x = 86,394.96