Finding the Fourth Proportional to 371,567,196.38, 557,568,130.01 and 138,558,882.83

Step by Step Solution

1. Step 1: Write the proportion equation
   371,567,196.38 : 557,568,130.01 = 138,558,882.83 : x
2. Step 2: Convert to fraction form
   371,567,196.38/557,568,130.01 = 138,558,882.83/x
3. Step 3: Cross multiply
   371,567,196.38x = 557,568,130.01 × 138,558,882.83
4. Step 4: Simplify right side
   371,567,196.38x = 77,256,017,192,317,152
5. Step 5: Solve for x
   x = 77,256,017,192,317,152/371,567,196.38
6. Step 6: Final answer
   x = 207,919,369.48