Finding the Fourth Proportional to 22,648.05, 31,254.59 and 12,577.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,648.05 : 31,254.59 = 12,577.12 : x
2. Step 2: Convert to fraction form
   22,648.05/31,254.59 = 12,577.12/x
3. Step 3: Cross multiply
   22,648.05x = 31,254.59 × 12,577.12
4. Step 4: Simplify right side
   22,648.05x = 393,092,682.29
5. Step 5: Solve for x
   x = 393,092,682.29/22,648.05
6. Step 6: Final answer
   x = 17,356.58