Finding the Fourth Proportional to 214,048.50, 320,992.56 and 171,824.82

Step by Step Solution

1. Step 1: Write the proportion equation
   214,048.50 : 320,992.56 = 171,824.82 : x
2. Step 2: Convert to fraction form
   214,048.50/320,992.56 = 171,824.82/x
3. Step 3: Cross multiply
   214,048.50x = 320,992.56 × 171,824.82
4. Step 4: Simplify right side
   214,048.50x = 55,154,488,843.34
5. Step 5: Solve for x
   x = 55,154,488,843.34/214,048.50
6. Step 6: Final answer
   x = 257,672.86