Finding the Fourth Proportional to 28,384,404.38, 42,577,959.83 and 13,793,940.84

Step by Step Solution

1. Step 1: Write the proportion equation
   28,384,404.38 : 42,577,959.83 = 13,793,940.84 : x
2. Step 2: Convert to fraction form
   28,384,404.38/42,577,959.83 = 13,793,940.84/x
3. Step 3: Cross multiply
   28,384,404.38x = 42,577,959.83 × 13,793,940.84
4. Step 4: Simplify right side
   28,384,404.38x = 587,317,858,982,916.38
5. Step 5: Solve for x
   x = 587,317,858,982,916.38/28,384,404.38
6. Step 6: Final answer
   x = 20,691,568.90