Finding the Fourth Proportional to 14,272.30, 21,411.69 and 7,698.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,272.30 : 21,411.69 = 7,698.34 : x
2. Step 2: Convert to fraction form
   14,272.30/21,411.69 = 7,698.34/x
3. Step 3: Cross multiply
   14,272.30x = 21,411.69 × 7,698.34
4. Step 4: Simplify right side
   14,272.30x = 164,834,469.59
5. Step 5: Solve for x
   x = 164,834,469.59/14,272.30
6. Step 6: Final answer
   x = 11,549.26