Finding the Fourth Proportional to 16,980.86, 23,434.34 and 9,427.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,980.86 : 23,434.34 = 9,427.29 : x
2. Step 2: Convert to fraction form
   16,980.86/23,434.34 = 9,427.29/x
3. Step 3: Cross multiply
   16,980.86x = 23,434.34 × 9,427.29
4. Step 4: Simplify right side
   16,980.86x = 220,922,272.00
5. Step 5: Solve for x
   x = 220,922,272.00/16,980.86
6. Step 6: Final answer
   x = 13,010.08