Finding the Fourth Proportional to 22,470.50, 31,009.29 and 12,534.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,470.50 : 31,009.29 = 12,534.50 : x
2. Step 2: Convert to fraction form
   22,470.50/31,009.29 = 12,534.50/x
3. Step 3: Cross multiply
   22,470.50x = 31,009.29 × 12,534.50
4. Step 4: Simplify right side
   22,470.50x = 388,685,945.51
5. Step 5: Solve for x
   x = 388,685,945.51/22,470.50
6. Step 6: Final answer
   x = 17,297.61