Finding the Fourth Proportional to 16,938.16, 23,374.64 and 9,384.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,938.16 : 23,374.64 = 9,384.50 : x
2. Step 2: Convert to fraction form
   16,938.16/23,374.64 = 9,384.50/x
3. Step 3: Cross multiply
   16,938.16x = 23,374.64 × 9,384.50
4. Step 4: Simplify right side
   16,938.16x = 219,359,309.08
5. Step 5: Solve for x
   x = 219,359,309.08/16,938.16
6. Step 6: Final answer
   x = 12,950.60