Finding the Fourth Proportional to 17,364.64, 23,938.32 and 12,388

Step by Step Solution

1. Step 1: Write the proportion equation
   17,364.64 : 23,938.32 = 12,388 : x
2. Step 2: Convert to fraction form
   17,364.64/23,938.32 = 12,388/x
3. Step 3: Cross multiply
   17,364.64x = 23,938.32 × 12,388
4. Step 4: Simplify right side
   17,364.64x = 296,547,908.16
5. Step 5: Solve for x
   x = 296,547,908.16/17,364.64
6. Step 6: Final answer
   x = 17,077.69