Finding the Fourth Proportional to 16,719.68, 23,075.76 and 9,648.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,719.68 : 23,075.76 = 9,648.32 : x
2. Step 2: Convert to fraction form
   16,719.68/23,075.76 = 9,648.32/x
3. Step 3: Cross multiply
   16,719.68x = 23,075.76 × 9,648.32
4. Step 4: Simplify right side
   16,719.68x = 222,642,316.72
5. Step 5: Solve for x
   x = 222,642,316.72/16,719.68
6. Step 6: Final answer
   x = 13,316.18