Finding the Fourth Proportional to 22,456.57, 30,988.88 and 12,384.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456.57 : 30,988.88 = 12,384.82 : x
2. Step 2: Convert to fraction form
   22,456.57/30,988.88 = 12,384.82/x
3. Step 3: Cross multiply
   22,456.57x = 30,988.88 × 12,384.82
4. Step 4: Simplify right side
   22,456.57x = 383,791,811.21
5. Step 5: Solve for x
   x = 383,791,811.21/22,456.57
6. Step 6: Final answer
   x = 17,090.40