Finding the Fourth Proportional to 16,780.91, 23,158.33 and 9,612.01

Step by Step Solution

1. Step 1: Write the proportion equation
   16,780.91 : 23,158.33 = 9,612.01 : x
2. Step 2: Convert to fraction form
   16,780.91/23,158.33 = 9,612.01/x
3. Step 3: Cross multiply
   16,780.91x = 23,158.33 × 9,612.01
4. Step 4: Simplify right side
   16,780.91x = 222,598,017.62
5. Step 5: Solve for x
   x = 222,598,017.62/16,780.91
6. Step 6: Final answer
   x = 13,264.95