Finding the Fourth Proportional to 646,637,123.27, 892,359,588.17 and 349,279,364.09

Step by Step Solution

1. Step 1: Write the proportion equation
   646,637,123.27 : 892,359,588.17 = 349,279,364.09 : x
2. Step 2: Convert to fraction form
   646,637,123.27/892,359,588.17 = 349,279,364.09/x
3. Step 3: Cross multiply
   646,637,123.27x = 892,359,588.17 × 349,279,364.09
4. Step 4: Simplify right side
   646,637,123.27x = 311,682,789,495,631,872
5. Step 5: Solve for x
   x = 311,682,789,495,631,872/646,637,123.27
6. Step 6: Final answer
   x = 482,005,715.85