Finding the Fourth Proportional to 315,993.47, 436,072.53 and 172,753.52

Step by Step Solution

1. Step 1: Write the proportion equation
   315,993.47 : 436,072.53 = 172,753.52 : x
2. Step 2: Convert to fraction form
   315,993.47/436,072.53 = 172,753.52/x
3. Step 3: Cross multiply
   315,993.47x = 436,072.53 × 172,753.52
4. Step 4: Simplify right side
   315,993.47x = 75,333,066,270.81
5. Step 5: Solve for x
   x = 75,333,066,270.81/315,993.47
6. Step 6: Final answer
   x = 238,400.70