Finding the Fourth Proportional to 19,309,086.07, 26,653,530.98 and 12,784,817.43

Step by Step Solution

1. Step 1: Write the proportion equation
   19,309,086.07 : 26,653,530.98 = 12,784,817.43 : x
2. Step 2: Convert to fraction form
   19,309,086.07/26,653,530.98 = 12,784,817.43/x
3. Step 3: Cross multiply
   19,309,086.07x = 26,653,530.98 × 12,784,817.43
4. Step 4: Simplify right side
   19,309,086.07x = 340,760,527,476,111.06
5. Step 5: Solve for x
   x = 340,760,527,476,111.06/19,309,086.07
6. Step 6: Final answer
   x = 17,647,677.69