Finding the Fourth Proportional to 19,978,743.36, 27,570,690.24 and 10,811,386.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978,743.36 : 27,570,690.24 = 10,811,386.10 : x
2. Step 2: Convert to fraction form
   19,978,743.36/27,570,690.24 = 10,811,386.10/x
3. Step 3: Cross multiply
   19,978,743.36x = 27,570,690.24 × 10,811,386.10
4. Step 4: Simplify right side
   19,978,743.36x = 298,077,377,228,141.62
5. Step 5: Solve for x
   x = 298,077,377,228,141.62/19,978,743.36
6. Step 6: Final answer
   x = 14,919,726.02