Finding the Fourth Proportional to 22,571.69, 31,152.77 and 13,009.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,571.69 : 31,152.77 = 13,009.86 : x
2. Step 2: Convert to fraction form
   22,571.69/31,152.77 = 13,009.86/x
3. Step 3: Cross multiply
   22,571.69x = 31,152.77 × 13,009.86
4. Step 4: Simplify right side
   22,571.69x = 405,293,111.26
5. Step 5: Solve for x
   x = 405,293,111.26/22,571.69
6. Step 6: Final answer
   x = 17,955.82