Finding the Fourth Proportional to 107,425.89, 161,142.03 and 51,271.92

Step by Step Solution

1. Step 1: Write the proportion equation
   107,425.89 : 161,142.03 = 51,271.92 : x
2. Step 2: Convert to fraction form
   107,425.89/161,142.03 = 51,271.92/x
3. Step 3: Cross multiply
   107,425.89x = 161,142.03 × 51,271.92
4. Step 4: Simplify right side
   107,425.89x = 8,262,061,270.80
5. Step 5: Solve for x
   x = 8,262,061,270.80/107,425.89
6. Step 6: Final answer
   x = 76,909.40