Finding the Fourth Proportional to 19,179,164.94, 28,780,097.34 and 7,057,140.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,179,164.94 : 28,780,097.34 = 7,057,140.72 : x
2. Step 2: Convert to fraction form
   19,179,164.94/28,780,097.34 = 7,057,140.72/x
3. Step 3: Cross multiply
   19,179,164.94x = 28,780,097.34 × 7,057,140.72
4. Step 4: Simplify right side
   19,179,164.94x = 203,105,196,863,677.69
5. Step 5: Solve for x
   x = 203,105,196,863,677.69/19,179,164.94
6. Step 6: Final answer
   x = 10,589,887.39