Finding the Fourth Proportional to 31,083,142,174.20, 42,894,864,551.50 and 16,809,969,488.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,083,142,174.20 : 42,894,864,551.50 = 16,809,969,488.12 : x
2. Step 2: Convert to fraction form
   31,083,142,174.20/42,894,864,551.50 = 16,809,969,488.12/x
3. Step 3: Cross multiply
   31,083,142,174.20x = 42,894,864,551.50 × 16,809,969,488.12
4. Step 4: Simplify right side
   31,083,142,174.20x = 721,061,364,307,755,270,144
5. Step 5: Solve for x
   x = 721,061,364,307,755,270,144/31,083,142,174.20
6. Step 6: Final answer
   x = 23,197,827,306.73