Finding the Fourth Proportional to 324,048.23, 447,061.83 and 202,978.74

Step by Step Solution

1. Step 1: Write the proportion equation
   324,048.23 : 447,061.83 = 202,978.74 : x
2. Step 2: Convert to fraction form
   324,048.23/447,061.83 = 202,978.74/x
3. Step 3: Cross multiply
   324,048.23x = 447,061.83 × 202,978.74
4. Step 4: Simplify right side
   324,048.23x = 90,744,049,012.56
5. Step 5: Solve for x
   x = 90,744,049,012.56/324,048.23
6. Step 6: Final answer
   x = 280,032.54