Finding the Fourth Proportional to 50,957.91, 76,407.69 and 21,350.79

Step by Step Solution

1. Step 1: Write the proportion equation
   50,957.91 : 76,407.69 = 21,350.79 : x
2. Step 2: Convert to fraction form
   50,957.91/76,407.69 = 21,350.79/x
3. Step 3: Cross multiply
   50,957.91x = 76,407.69 × 21,350.79
4. Step 4: Simplify right side
   50,957.91x = 1,631,364,543.58
5. Step 5: Solve for x
   x = 1,631,364,543.58/50,957.91
6. Step 6: Final answer
   x = 32,013.96