Finding the Fourth Proportional to 19,978,912.84, 27,570,899.78 and 10,811,555.59

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978,912.84 : 27,570,899.78 = 10,811,555.59 : x
2. Step 2: Convert to fraction form
   19,978,912.84/27,570,899.78 = 10,811,555.59/x
3. Step 3: Cross multiply
   19,978,912.84x = 27,570,899.78 × 10,811,555.59
4. Step 4: Simplify right side
   19,978,912.84x = 298,084,315,637,788.75
5. Step 5: Solve for x
   x = 298,084,315,637,788.75/19,978,912.84
6. Step 6: Final answer
   x = 14,919,946.75