Finding the Fourth Proportional to 19,978,910.72, 27,570,896.84 and 10,811,553.47

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978,910.72 : 27,570,896.84 = 10,811,553.47 : x
2. Step 2: Convert to fraction form
   19,978,910.72/27,570,896.84 = 10,811,553.47/x
3. Step 3: Cross multiply
   19,978,910.72x = 27,570,896.84 × 10,811,553.47
4. Step 4: Simplify right side
   19,978,910.72x = 298,084,225,394,079.31
5. Step 5: Solve for x
   x = 298,084,225,394,079.31/19,978,910.72
6. Step 6: Final answer
   x = 14,919,943.81