Finding the Fourth Proportional to 10,126,322.78, 13,974,456.69 and 5,542,545.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,126,322.78 : 13,974,456.69 = 5,542,545.74 : x
2. Step 2: Convert to fraction form
   10,126,322.78/13,974,456.69 = 5,542,545.74/x
3. Step 3: Cross multiply
   10,126,322.78x = 13,974,456.69 × 5,542,545.74
4. Step 4: Simplify right side
   10,126,322.78x = 77,454,065,395,974
5. Step 5: Solve for x
   x = 77,454,065,395,974/10,126,322.78
6. Step 6: Final answer
   x = 7,648,784.96