Finding the Fourth Proportional to 398,322.43, 596,499.72 and 296,877.15

Step by Step Solution

1. Step 1: Write the proportion equation
   398,322.43 : 596,499.72 = 296,877.15 : x
2. Step 2: Convert to fraction form
   398,322.43/596,499.72 = 296,877.15/x
3. Step 3: Cross multiply
   398,322.43x = 596,499.72 × 296,877.15
4. Step 4: Simplify right side
   398,322.43x = 177,087,136,849.40
5. Step 5: Solve for x
   x = 177,087,136,849.40/398,322.43
6. Step 6: Final answer
   x = 444,582.39