Finding the Fourth Proportional to 21,178,854.90, 31,764,626.01 and 5,616,791.46

Step by Step Solution

1. Step 1: Write the proportion equation
   21,178,854.90 : 31,764,626.01 = 5,616,791.46 : x
2. Step 2: Convert to fraction form
   21,178,854.90/31,764,626.01 = 5,616,791.46/x
3. Step 3: Cross multiply
   21,178,854.90x = 31,764,626.01 × 5,616,791.46
4. Step 4: Simplify right side
   21,178,854.90x = 178,415,280,103,061.88
5. Step 5: Solve for x
   x = 178,415,280,103,061.88/21,178,854.90
6. Step 6: Final answer
   x = 8,424,217.50