Finding the Fourth Proportional to 314,061.17, 470,912.74 and 214,342.07

Step by Step Solution

1. Step 1: Write the proportion equation
   314,061.17 : 470,912.74 = 214,342.07 : x
2. Step 2: Convert to fraction form
   314,061.17/470,912.74 = 214,342.07/x
3. Step 3: Cross multiply
   314,061.17x = 470,912.74 × 214,342.07
4. Step 4: Simplify right side
   314,061.17x = 100,936,408,590.55
5. Step 5: Solve for x
   x = 100,936,408,590.55/314,061.17
6. Step 6: Final answer
   x = 321,390.93