Finding the Fourth Proportional to 318,128.72, 439,026.01 and 174,892.37

Step by Step Solution

1. Step 1: Write the proportion equation
   318,128.72 : 439,026.01 = 174,892.37 : x
2. Step 2: Convert to fraction form
   318,128.72/439,026.01 = 174,892.37/x
3. Step 3: Cross multiply
   318,128.72x = 439,026.01 × 174,892.37
4. Step 4: Simplify right side
   318,128.72x = 76,782,296,748.18
5. Step 5: Solve for x
   x = 76,782,296,748.18/318,128.72
6. Step 6: Final answer
   x = 241,356.07