Finding the Fourth Proportional to 22,071.42, 30,451.77 and 12,509.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,071.42 : 30,451.77 = 12,509.73 : x
2. Step 2: Convert to fraction form
   22,071.42/30,451.77 = 12,509.73/x
3. Step 3: Cross multiply
   22,071.42x = 30,451.77 × 12,509.73
4. Step 4: Simplify right side
   22,071.42x = 380,943,420.72
5. Step 5: Solve for x
   x = 380,943,420.72/22,071.42
6. Step 6: Final answer
   x = 17,259.58