Finding the Fourth Proportional to 22,997.50, 31,736.58 and 13,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,997.50 : 31,736.58 = 13,061.50 : x
2. Step 2: Convert to fraction form
   22,997.50/31,736.58 = 13,061.50/x
3. Step 3: Cross multiply
   22,997.50x = 31,736.58 × 13,061.50
4. Step 4: Simplify right side
   22,997.50x = 414,527,339.67
5. Step 5: Solve for x
   x = 414,527,339.67/22,997.50
6. Step 6: Final answer
   x = 18,024.89