Finding the Fourth Proportional to 22,928.86, 31,643.45 and 12,723.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,928.86 : 31,643.45 = 12,723.23 : x
2. Step 2: Convert to fraction form
   22,928.86/31,643.45 = 12,723.23/x
3. Step 3: Cross multiply
   22,928.86x = 31,643.45 × 12,723.23
4. Step 4: Simplify right side
   22,928.86x = 402,607,003.26
5. Step 5: Solve for x
   x = 402,607,003.26/22,928.86
6. Step 6: Final answer
   x = 17,558.96