Finding the Fourth Proportional to 327,607,870.05, 451,799,440.12 and 256,090,200.05

Step by Step Solution

1. Step 1: Write the proportion equation
   327,607,870.05 : 451,799,440.12 = 256,090,200.05 : x
2. Step 2: Convert to fraction form
   327,607,870.05/451,799,440.12 = 256,090,200.05/x
3. Step 3: Cross multiply
   327,607,870.05x = 451,799,440.12 × 256,090,200.05
4. Step 4: Simplify right side
   327,607,870.05x = 115,701,409,002,808,800
5. Step 5: Solve for x
   x = 115,701,409,002,808,800/327,607,870.05
6. Step 6: Final answer
   x = 353,170,419.82