Finding the Fourth Proportional to 12,195,736.40, 16,831,149.96 and 6,764,978

Step by Step Solution

1. Step 1: Write the proportion equation
   12,195,736.40 : 16,831,149.96 = 6,764,978 : x
2. Step 2: Convert to fraction form
   12,195,736.40/16,831,149.96 = 6,764,978/x
3. Step 3: Cross multiply
   12,195,736.40x = 16,831,149.96 × 6,764,978
4. Step 4: Simplify right side
   12,195,736.40x = 113,862,359,194,100.89
5. Step 5: Solve for x
   x = 113,862,359,194,100.89/12,195,736.40
6. Step 6: Final answer
   x = 9,336,243.05