Finding the Fourth Proportional to 89,127.78, 122,980.71 and 50,869.86

Step by Step Solution

1. Step 1: Write the proportion equation
   89,127.78 : 122,980.71 = 50,869.86 : x
2. Step 2: Convert to fraction form
   89,127.78/122,980.71 = 50,869.86/x
3. Step 3: Cross multiply
   89,127.78x = 122,980.71 × 50,869.86
4. Step 4: Simplify right side
   89,127.78x = 6,256,011,229.98
5. Step 5: Solve for x
   x = 6,256,011,229.98/89,127.78
6. Step 6: Final answer
   x = 70,191.49