Finding the Fourth Proportional to 50,900.24, 76,341.68 and 13,460.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,900.24 : 76,341.68 = 13,460.72 : x
2. Step 2: Convert to fraction form
   50,900.24/76,341.68 = 13,460.72/x
3. Step 3: Cross multiply
   50,900.24x = 76,341.68 × 13,460.72
4. Step 4: Simplify right side
   50,900.24x = 1,027,613,978.81
5. Step 5: Solve for x
   x = 1,027,613,978.81/50,900.24
6. Step 6: Final answer
   x = 20,188.78