Finding the Fourth Proportional to 400,847,034.72, 601,123,074.84 and 138,464,819.04

Step by Step Solution

1. Step 1: Write the proportion equation
   400,847,034.72 : 601,123,074.84 = 138,464,819.04 : x
2. Step 2: Convert to fraction form
   400,847,034.72/601,123,074.84 = 138,464,819.04/x
3. Step 3: Cross multiply
   400,847,034.72x = 601,123,074.84 × 138,464,819.04
4. Step 4: Simplify right side
   400,847,034.72x = 83,234,397,778,488,976
5. Step 5: Solve for x
   x = 83,234,397,778,488,976/400,847,034.72
6. Step 6: Final answer
   x = 207,646,285.41