Finding the Fourth Proportional to 22,557.10, 31,127.59 and 12,484.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,557.10 : 31,127.59 = 12,484.98 : x
2. Step 2: Convert to fraction form
   22,557.10/31,127.59 = 12,484.98/x
3. Step 3: Cross multiply
   22,557.10x = 31,127.59 × 12,484.98
4. Step 4: Simplify right side
   22,557.10x = 388,627,338.60
5. Step 5: Solve for x
   x = 388,627,338.60/22,557.10
6. Step 6: Final answer
   x = 17,228.60