Finding the Fourth Proportional to 10,210,921.72, 14,091,072.15 and 5,627,243.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,210,921.72 : 14,091,072.15 = 5,627,243.09 : x
2. Step 2: Convert to fraction form
   10,210,921.72/14,091,072.15 = 5,627,243.09/x
3. Step 3: Cross multiply
   10,210,921.72x = 14,091,072.15 × 5,627,243.09
4. Step 4: Simplify right side
   10,210,921.72x = 79,293,888,386,778.94
5. Step 5: Solve for x
   x = 79,293,888,386,778.94/10,210,921.72
6. Step 6: Final answer
   x = 7,765,595.56