Finding the Fourth Proportional to 30,783,674.84, 42,462,961.92 and 20,329,787.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,783,674.84 : 42,462,961.92 = 20,329,787.48 : x
2. Step 2: Convert to fraction form
   30,783,674.84/42,462,961.92 = 20,329,787.48/x
3. Step 3: Cross multiply
   30,783,674.84x = 42,462,961.92 × 20,329,787.48
4. Step 4: Simplify right side
   30,783,674.84x = 863,262,991,604,932.88
5. Step 5: Solve for x
   x = 863,262,991,604,932.88/30,783,674.84
6. Step 6: Final answer
   x = 28,042,882.99