Finding the Fourth Proportional to 10,137,456.53, 13,989,574.18 and 5,491,153.97

Step by Step Solution

1. Step 1: Write the proportion equation
   10,137,456.53 : 13,989,574.18 = 5,491,153.97 : x
2. Step 2: Convert to fraction form
   10,137,456.53/13,989,574.18 = 5,491,153.97/x
3. Step 3: Cross multiply
   10,137,456.53x = 13,989,574.18 × 5,491,153.97
4. Step 4: Simplify right side
   10,137,456.53x = 76,818,905,797,116.48
5. Step 5: Solve for x
   x = 76,818,905,797,116.48/10,137,456.53
6. Step 6: Final answer
   x = 7,577,729.74