Finding the Fourth Proportional to 23,107,205.31, 31,888,939.73 and 12,793,928.37

Step by Step Solution

1. Step 1: Write the proportion equation
   23,107,205.31 : 31,888,939.73 = 12,793,928.37 : x
2. Step 2: Convert to fraction form
   23,107,205.31/31,888,939.73 = 12,793,928.37/x
3. Step 3: Cross multiply
   23,107,205.31x = 31,888,939.73 × 12,793,928.37
4. Step 4: Simplify right side
   23,107,205.31x = 407,984,810,636,897.50
5. Step 5: Solve for x
   x = 407,984,810,636,897.50/23,107,205.31
6. Step 6: Final answer
   x = 17,656,172.83