Finding the Fourth Proportional to 93,028.56, 128,379.24 and 50,586.72

Step by Step Solution

1. Step 1: Write the proportion equation
   93,028.56 : 128,379.24 = 50,586.72 : x
2. Step 2: Convert to fraction form
   93,028.56/128,379.24 = 50,586.72/x
3. Step 3: Cross multiply
   93,028.56x = 128,379.24 × 50,586.72
4. Step 4: Simplify right side
   93,028.56x = 6,494,284,667.69
5. Step 5: Solve for x
   x = 6,494,284,667.69/93,028.56
6. Step 6: Final answer
   x = 69,809.58