Finding the Fourth Proportional to 21,041,128.38, 31,533,791.04 and 10,805,574.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,041,128.38 : 31,533,791.04 = 10,805,574.72 : x
2. Step 2: Convert to fraction form
   21,041,128.38/31,533,791.04 = 10,805,574.72/x
3. Step 3: Cross multiply
   21,041,128.38x = 31,533,791.04 × 10,805,574.72
4. Step 4: Simplify right side
   21,041,128.38x = 340,740,735,287,586.50
5. Step 5: Solve for x
   x = 340,740,735,287,586.50/21,041,128.38
6. Step 6: Final answer
   x = 16,194,033.38