Finding the Fourth Proportional to 34,021.86, 50,980.82 and 14,289.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,021.86 : 50,980.82 = 14,289.72 : x
2. Step 2: Convert to fraction form
   34,021.86/50,980.82 = 14,289.72/x
3. Step 3: Cross multiply
   34,021.86x = 50,980.82 × 14,289.72
4. Step 4: Simplify right side
   34,021.86x = 728,501,643.17
5. Step 5: Solve for x
   x = 728,501,643.17/34,021.86
6. Step 6: Final answer
   x = 21,412.75