Finding the Fourth Proportional to 23,141,887.49, 31,936,115.59 and 12,687,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,141,887.49 : 31,936,115.59 = 12,687,878.50 : x
2. Step 2: Convert to fraction form
   23,141,887.49/31,936,115.59 = 12,687,878.50/x
3. Step 3: Cross multiply
   23,141,887.49x = 31,936,115.59 × 12,687,878.50
4. Step 4: Simplify right side
   23,141,887.49x = 405,201,554,435,328.69
5. Step 5: Solve for x
   x = 405,201,554,435,328.69/23,141,887.49
6. Step 6: Final answer
   x = 17,509,442.76