Finding the Fourth Proportional to 30,789,478,898.28, 42,489,481,242.42 and 16,708,418,162.28

Step by Step Solution

1. Step 1: Write the proportion equation
   30,789,478,898.28 : 42,489,481,242.42 = 16,708,418,162.28 : x
2. Step 2: Convert to fraction form
   30,789,478,898.28/42,489,481,242.42 = 16,708,418,162.28/x
3. Step 3: Cross multiply
   30,789,478,898.28x = 42,489,481,242.42 × 16,708,418,162.28
4. Step 4: Simplify right side
   30,789,478,898.28x = 709,932,020,096,705,757,184
5. Step 5: Solve for x
   x = 709,932,020,096,705,757,184/30,789,478,898.28
6. Step 6: Final answer
   x = 23,057,617,260.82