Finding the Fourth Proportional to 128,967,676.38, 177,975,404.56 and 70,230,323.88

Step by Step Solution

1. Step 1: Write the proportion equation
   128,967,676.38 : 177,975,404.56 = 70,230,323.88 : x
2. Step 2: Convert to fraction form
   128,967,676.38/177,975,404.56 = 70,230,323.88/x
3. Step 3: Cross multiply
   128,967,676.38x = 177,975,404.56 × 70,230,323.88
4. Step 4: Simplify right side
   128,967,676.38x = 12,499,270,304,922,828
5. Step 5: Solve for x
   x = 12,499,270,304,922,828/128,967,676.38
6. Step 6: Final answer
   x = 96,917,853.03