Finding the Fourth Proportional to 22,456.32, 30,988.98 and 12,384.95

Step by Step Solution

1. Step 1: Write the proportion equation
   22,456.32 : 30,988.98 = 12,384.95 : x
2. Step 2: Convert to fraction form
   22,456.32/30,988.98 = 12,384.95/x
3. Step 3: Cross multiply
   22,456.32x = 30,988.98 × 12,384.95
4. Step 4: Simplify right side
   22,456.32x = 383,796,812.91
5. Step 5: Solve for x
   x = 383,796,812.91/22,456.32
6. Step 6: Final answer
   x = 17,090.82