Finding the Fourth Proportional to 30,790,070.21, 42,490,409.50 and 16,661,256.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,790,070.21 : 42,490,409.50 = 16,661,256.82 : x
2. Step 2: Convert to fraction form
   30,790,070.21/42,490,409.50 = 16,661,256.82/x
3. Step 3: Cross multiply
   30,790,070.21x = 42,490,409.50 × 16,661,256.82
4. Step 4: Simplify right side
   30,790,070.21x = 707,943,624,981,068.38
5. Step 5: Solve for x
   x = 707,943,624,981,068.38/30,790,070.21
6. Step 6: Final answer
   x = 22,992,595.34