Finding the Fourth Proportional to 30,790,146.97, 42,490,515.45 and 16,661,333.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,790,146.97 : 42,490,515.45 = 16,661,333.50 : x
2. Step 2: Convert to fraction form
   30,790,146.97/42,490,515.45 = 16,661,333.50/x
3. Step 3: Cross multiply
   30,790,146.97x = 42,490,515.45 × 16,661,333.50
4. Step 4: Simplify right side
   30,790,146.97x = 707,948,648,499,352.62
5. Step 5: Solve for x
   x = 707,948,648,499,352.62/30,790,146.97
6. Step 6: Final answer
   x = 22,992,701.18