Finding the Fourth Proportional to 314,243.60, 433,665.21 and 171,012.72

Step by Step Solution

1. Step 1: Write the proportion equation
   314,243.60 : 433,665.21 = 171,012.72 : x
2. Step 2: Convert to fraction form
   314,243.60/433,665.21 = 171,012.72/x
3. Step 3: Cross multiply
   314,243.60x = 433,665.21 × 171,012.72
4. Step 4: Simplify right side
   314,243.60x = 74,162,267,131.47
5. Step 5: Solve for x
   x = 74,162,267,131.47/314,243.60
6. Step 6: Final answer
   x = 236,002.47