Finding the Fourth Proportional to 22,085.84, 30,467.72 and 13,127

Step by Step Solution

1. Step 1: Write the proportion equation
   22,085.84 : 30,467.72 = 13,127 : x
2. Step 2: Convert to fraction form
   22,085.84/30,467.72 = 13,127/x
3. Step 3: Cross multiply
   22,085.84x = 30,467.72 × 13,127
4. Step 4: Simplify right side
   22,085.84x = 399,949,760.44
5. Step 5: Solve for x
   x = 399,949,760.44/22,085.84
6. Step 6: Final answer
   x = 18,108.88