Finding the Fourth Proportional to 316,363.89, 436,582.23 and 173,123.94

Step by Step Solution

1. Step 1: Write the proportion equation
   316,363.89 : 436,582.23 = 173,123.94 : x
2. Step 2: Convert to fraction form
   316,363.89/436,582.23 = 173,123.94/x
3. Step 3: Cross multiply
   316,363.89x = 436,582.23 × 173,123.94
4. Step 4: Simplify right side
   316,363.89x = 75,582,835,791.59
5. Step 5: Solve for x
   x = 75,582,835,791.59/316,363.89
6. Step 6: Final answer
   x = 238,911.07