Finding the Fourth Proportional to 439,339,061.42, 658,987,294.38 and 163,044,139.40

Step by Step Solution

1. Step 1: Write the proportion equation
   439,339,061.42 : 658,987,294.38 = 163,044,139.40 : x
2. Step 2: Convert to fraction form
   439,339,061.42/658,987,294.38 = 163,044,139.40/x
3. Step 3: Cross multiply
   439,339,061.42x = 658,987,294.38 × 163,044,139.40
4. Step 4: Simplify right side
   439,339,061.42x = 107,444,016,287,721,552
5. Step 5: Solve for x
   x = 107,444,016,287,721,552/439,339,061.42
6. Step 6: Final answer
   x = 244,558,305.24