Finding the Fourth Proportional to 339,605.16, 468,657.94 and 212,354.52

Step by Step Solution

1. Step 1: Write the proportion equation
   339,605.16 : 468,657.94 = 212,354.52 : x
2. Step 2: Convert to fraction form
   339,605.16/468,657.94 = 212,354.52/x
3. Step 3: Cross multiply
   339,605.16x = 468,657.94 × 212,354.52
4. Step 4: Simplify right side
   339,605.16x = 99,521,631,892.89
5. Step 5: Solve for x
   x = 99,521,631,892.89/339,605.16
6. Step 6: Final answer
   x = 293,051.00