Finding the Fourth Proportional to 22,981.48, 31,713.25 and 12,910.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,981.48 : 31,713.25 = 12,910.34 : x
2. Step 2: Convert to fraction form
   22,981.48/31,713.25 = 12,910.34/x
3. Step 3: Cross multiply
   22,981.48x = 31,713.25 × 12,910.34
4. Step 4: Simplify right side
   22,981.48x = 409,428,840.01
5. Step 5: Solve for x
   x = 409,428,840.01/22,981.48
6. Step 6: Final answer
   x = 17,815.60