Finding the Fourth Proportional to 23,136.31, 31,927.85 and 13,064.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,136.31 : 31,927.85 = 13,064.15 : x
2. Step 2: Convert to fraction form
   23,136.31/31,927.85 = 13,064.15/x
3. Step 3: Cross multiply
   23,136.31x = 31,927.85 × 13,064.15
4. Step 4: Simplify right side
   23,136.31x = 417,110,061.94
5. Step 5: Solve for x
   x = 417,110,061.94/23,136.31
6. Step 6: Final answer
   x = 18,028.38