Finding the Fourth Proportional to 14,111.21, 21,150.72 and 6,705.18

Step by Step Solution

1. Step 1: Write the proportion equation
   14,111.21 : 21,150.72 = 6,705.18 : x
2. Step 2: Convert to fraction form
   14,111.21/21,150.72 = 6,705.18/x
3. Step 3: Cross multiply
   14,111.21x = 21,150.72 × 6,705.18
4. Step 4: Simplify right side
   14,111.21x = 141,819,384.73
5. Step 5: Solve for x
   x = 141,819,384.73/14,111.21
6. Step 6: Final answer
   x = 10,050.12