Finding the Fourth Proportional to 17,839.32, 26,758.86 and 13,947

Step by Step Solution

1. Step 1: Write the proportion equation
   17,839.32 : 26,758.86 = 13,947 : x
2. Step 2: Convert to fraction form
   17,839.32/26,758.86 = 13,947/x
3. Step 3: Cross multiply
   17,839.32x = 26,758.86 × 13,947
4. Step 4: Simplify right side
   17,839.32x = 373,205,820.42
5. Step 5: Solve for x
   x = 373,205,820.42/17,839.32
6. Step 6: Final answer
   x = 20,920.41