Finding the Fourth Proportional to 258,812.72, 357,169.50 and 140,947.59

Step by Step Solution

1. Step 1: Write the proportion equation
   258,812.72 : 357,169.50 = 140,947.59 : x
2. Step 2: Convert to fraction form
   258,812.72/357,169.50 = 140,947.59/x
3. Step 3: Cross multiply
   258,812.72x = 357,169.50 × 140,947.59
4. Step 4: Simplify right side
   258,812.72x = 50,342,181,585.89
5. Step 5: Solve for x
   x = 50,342,181,585.89/258,812.72
6. Step 6: Final answer
   x = 194,512.01