Finding the Fourth Proportional to 16,980.01, 23,427.15 and 9,901.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,980.01 : 23,427.15 = 9,901.42 : x
2. Step 2: Convert to fraction form
   16,980.01/23,427.15 = 9,901.42/x
3. Step 3: Cross multiply
   16,980.01x = 23,427.15 × 9,901.42
4. Step 4: Simplify right side
   16,980.01x = 231,962,051.55
5. Step 5: Solve for x
   x = 231,962,051.55/16,980.01
6. Step 6: Final answer
   x = 13,660.89