Finding the Fourth Proportional to 17,339.90, 23,928.89 and 9,381.95

Step by Step Solution

1. Step 1: Write the proportion equation
   17,339.90 : 23,928.89 = 9,381.95 : x
2. Step 2: Convert to fraction form
   17,339.90/23,928.89 = 9,381.95/x
3. Step 3: Cross multiply
   17,339.90x = 23,928.89 × 9,381.95
4. Step 4: Simplify right side
   17,339.90x = 224,499,482.98
5. Step 5: Solve for x
   x = 224,499,482.98/17,339.90
6. Step 6: Final answer
   x = 12,946.99