Finding the Fourth Proportional to 51,019.48, 76,510.86 and 17,731

Step by Step Solution

1. Step 1: Write the proportion equation
   51,019.48 : 76,510.86 = 17,731 : x
2. Step 2: Convert to fraction form
   51,019.48/76,510.86 = 17,731/x
3. Step 3: Cross multiply
   51,019.48x = 76,510.86 × 17,731
4. Step 4: Simplify right side
   51,019.48x = 1,356,614,058.66
5. Step 5: Solve for x
   x = 1,356,614,058.66/51,019.48
6. Step 6: Final answer
   x = 26,590.12