Finding the Fourth Proportional to 19,978,889.67, 27,570,867.76 and 10,811,532.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978,889.67 : 27,570,867.76 = 10,811,532.42 : x
2. Step 2: Convert to fraction form
   19,978,889.67/27,570,867.76 = 10,811,532.42/x
3. Step 3: Cross multiply
   19,978,889.67x = 27,570,867.76 × 10,811,532.42
4. Step 4: Simplify right side
   19,978,889.67x = 298,083,330,607,743.94
5. Step 5: Solve for x
   x = 298,083,330,607,743.94/19,978,889.67
6. Step 6: Final answer
   x = 14,919,914.75