Finding the Fourth Proportional to 23,141,038.68, 31,934,456.44 and 12,686,929.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,141,038.68 : 31,934,456.44 = 12,686,929.91 : x
2. Step 2: Convert to fraction form
   23,141,038.68/31,934,456.44 = 12,686,929.91/x
3. Step 3: Cross multiply
   23,141,038.68x = 31,934,456.44 × 12,686,929.91
4. Step 4: Simplify right side
   23,141,038.68x = 405,150,210,648,064.25
5. Step 5: Solve for x
   x = 405,150,210,648,064.25/23,141,038.68
6. Step 6: Final answer
   x = 17,507,866.27