Finding the Fourth Proportional to 22,510, 31,063.80 and 12,574

Step by Step Solution

1. Step 1: Write the proportion equation
   22,510 : 31,063.80 = 12,574 : x
2. Step 2: Convert to fraction form
   22,510/31,063.80 = 12,574/x
3. Step 3: Cross multiply
   22,510x = 31,063.80 × 12,574
4. Step 4: Simplify right side
   22,510x = 390,596,221.20
5. Step 5: Solve for x
   x = 390,596,221.20/22,510
6. Step 6: Final answer
   x = 17,352.12