Finding the Fourth Proportional to 10,040,106.96, 13,855,454.46 and 5,456,428.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,040,106.96 : 13,855,454.46 = 5,456,428.20 : x
2. Step 2: Convert to fraction form
   10,040,106.96/13,855,454.46 = 5,456,428.20/x
3. Step 3: Cross multiply
   10,040,106.96x = 13,855,454.46 × 5,456,428.20
4. Step 4: Simplify right side
   10,040,106.96x = 75,601,292,439,359.78
5. Step 5: Solve for x
   x = 75,601,292,439,359.78/10,040,106.96
6. Step 6: Final answer
   x = 7,529,928.99