Finding the Fourth Proportional to 17,388.78, 23,969.98 and 10,661.93

Step by Step Solution

1. Step 1: Write the proportion equation
   17,388.78 : 23,969.98 = 10,661.93 : x
2. Step 2: Convert to fraction form
   17,388.78/23,969.98 = 10,661.93/x
3. Step 3: Cross multiply
   17,388.78x = 23,969.98 × 10,661.93
4. Step 4: Simplify right side
   17,388.78x = 255,566,172.25
5. Step 5: Solve for x
   x = 255,566,172.25/17,388.78
6. Step 6: Final answer
   x = 14,697.19