Finding the Fourth Proportional to 107,429.42, 161,147.28 and 51,275.42

Step by Step Solution

1. Step 1: Write the proportion equation
   107,429.42 : 161,147.28 = 51,275.42 : x
2. Step 2: Convert to fraction form
   107,429.42/161,147.28 = 51,275.42/x
3. Step 3: Cross multiply
   107,429.42x = 161,147.28 × 51,275.42
4. Step 4: Simplify right side
   107,429.42x = 8,262,894,463.86
5. Step 5: Solve for x
   x = 8,262,894,463.86/107,429.42
6. Step 6: Final answer
   x = 76,914.63