Finding the Fourth Proportional to 17,766.09, 24,507.50 and 12,380

Step by Step Solution

1. Step 1: Write the proportion equation
   17,766.09 : 24,507.50 = 12,380 : x
2. Step 2: Convert to fraction form
   17,766.09/24,507.50 = 12,380/x
3. Step 3: Cross multiply
   17,766.09x = 24,507.50 × 12,380
4. Step 4: Simplify right side
   17,766.09x = 303,402,850
5. Step 5: Solve for x
   x = 303,402,850/17,766.09
6. Step 6: Final answer
   x = 17,077.64