Finding the Fourth Proportional to 23,131.94, 31,922.01 and 12,521.52

Step by Step Solution

1. Step 1: Write the proportion equation
   23,131.94 : 31,922.01 = 12,521.52 : x
2. Step 2: Convert to fraction form
   23,131.94/31,922.01 = 12,521.52/x
3. Step 3: Cross multiply
   23,131.94x = 31,922.01 × 12,521.52
4. Step 4: Simplify right side
   23,131.94x = 399,712,086.66
5. Step 5: Solve for x
   x = 399,712,086.66/23,131.94
6. Step 6: Final answer
   x = 17,279.66