Finding the Fourth Proportional to 92,818.72, 128,089.96 and 50,377.25

Step by Step Solution

1. Step 1: Write the proportion equation
   92,818.72 : 128,089.96 = 50,377.25 : x
2. Step 2: Convert to fraction form
   92,818.72/128,089.96 = 50,377.25/x
3. Step 3: Cross multiply
   92,818.72x = 128,089.96 × 50,377.25
4. Step 4: Simplify right side
   92,818.72x = 6,452,820,131.69
5. Step 5: Solve for x
   x = 6,452,820,131.69/92,818.72
6. Step 6: Final answer
   x = 69,520.68