Finding the Fourth Proportional to 16,981.56, 23,434.50 and 9,427.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,981.56 : 23,434.50 = 9,427.98 : x
2. Step 2: Convert to fraction form
   16,981.56/23,434.50 = 9,427.98/x
3. Step 3: Cross multiply
   16,981.56x = 23,434.50 × 9,427.98
4. Step 4: Simplify right side
   16,981.56x = 220,939,997.31
5. Step 5: Solve for x
   x = 220,939,997.31/16,981.56
6. Step 6: Final answer
   x = 13,010.58