Finding the Fourth Proportional to 14,080.72, 21,128.12 and 6,581.14

Step by Step Solution

1. Step 1: Write the proportion equation
   14,080.72 : 21,128.12 = 6,581.14 : x
2. Step 2: Convert to fraction form
   14,080.72/21,128.12 = 6,581.14/x
3. Step 3: Cross multiply
   14,080.72x = 21,128.12 × 6,581.14
4. Step 4: Simplify right side
   14,080.72x = 139,047,115.66
5. Step 5: Solve for x
   x = 139,047,115.66/14,080.72
6. Step 6: Final answer
   x = 9,875.00