Finding the Fourth Proportional to 17,884.17, 26,839.89 and 12,884.13

Step by Step Solution

1. Step 1: Write the proportion equation
   17,884.17 : 26,839.89 = 12,884.13 : x
2. Step 2: Convert to fraction form
   17,884.17/26,839.89 = 12,884.13/x
3. Step 3: Cross multiply
   17,884.17x = 26,839.89 × 12,884.13
4. Step 4: Simplify right side
   17,884.17x = 345,808,631.95
5. Step 5: Solve for x
   x = 345,808,631.95/17,884.17
6. Step 6: Final answer
   x = 19,336.02