Finding the Fourth Proportional to 1,553,103,928, 2,141,863,945.68 and 1,214,057,196.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553,103,928 : 2,141,863,945.68 = 1,214,057,196.28 : x
2. Step 2: Convert to fraction form
   1,553,103,928/2,141,863,945.68 = 1,214,057,196.28/x
3. Step 3: Cross multiply
   1,553,103,928x = 2,141,863,945.68 × 1,214,057,196.28
4. Step 4: Simplify right side
   1,553,103,928x = 2,600,345,336,705,479,168
5. Step 5: Solve for x
   x = 2,600,345,336,705,479,168/1,553,103,928
6. Step 6: Final answer
   x = 1,674,289,331.08