Finding the Fourth Proportional to 30,790,076.16, 42,490,417.67 and 16,661,262.71

Step by Step Solution

1. Step 1: Write the proportion equation
   30,790,076.16 : 42,490,417.67 = 16,661,262.71 : x
2. Step 2: Convert to fraction form
   30,790,076.16/42,490,417.67 = 16,661,262.71/x
3. Step 3: Cross multiply
   30,790,076.16x = 42,490,417.67 × 16,661,262.71
4. Step 4: Simplify right side
   30,790,076.16x = 707,944,011,457,496.12
5. Step 5: Solve for x
   x = 707,944,011,457,496.12/30,790,076.16
6. Step 6: Final answer
   x = 22,992,603.45