Finding the Fourth Proportional to 9,789,940.67, 13,510,343.25 and 5,379,940.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789,940.67 : 13,510,343.25 = 5,379,940.49 : x
2. Step 2: Convert to fraction form
   9,789,940.67/13,510,343.25 = 5,379,940.49/x
3. Step 3: Cross multiply
   9,789,940.67x = 13,510,343.25 × 5,379,940.49
4. Step 4: Simplify right side
   9,789,940.67x = 72,684,842,684,473.20
5. Step 5: Solve for x
   x = 72,684,842,684,473.20/9,789,940.67
6. Step 6: Final answer
   x = 7,424,441.59