Finding the Fourth Proportional to 16,679.18, 23,009.31 and 10,303.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,679.18 : 23,009.31 = 10,303.47 : x
2. Step 2: Convert to fraction form
   16,679.18/23,009.31 = 10,303.47/x
3. Step 3: Cross multiply
   16,679.18x = 23,009.31 × 10,303.47
4. Step 4: Simplify right side
   16,679.18x = 237,075,821.59
5. Step 5: Solve for x
   x = 237,075,821.59/16,679.18
6. Step 6: Final answer
   x = 14,213.88