Finding the Fourth Proportional to 9,789,938.67, 13,510,340.49 and 5,379,938.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789,938.67 : 13,510,340.49 = 5,379,938.49 : x
2. Step 2: Convert to fraction form
   9,789,938.67/13,510,340.49 = 5,379,938.49/x
3. Step 3: Cross multiply
   9,789,938.67x = 13,510,340.49 × 5,379,938.49
4. Step 4: Simplify right side
   9,789,938.67x = 72,684,800,815,156.47
5. Step 5: Solve for x
   x = 72,684,800,815,156.47/9,789,938.67
6. Step 6: Final answer
   x = 7,424,438.83