Finding the Fourth Proportional to 14,209.72, 19,608.61 and 7,836.10

Step by Step Solution

1. Step 1: Write the proportion equation
   14,209.72 : 19,608.61 = 7,836.10 : x
2. Step 2: Convert to fraction form
   14,209.72/19,608.61 = 7,836.10/x
3. Step 3: Cross multiply
   14,209.72x = 19,608.61 × 7,836.10
4. Step 4: Simplify right side
   14,209.72x = 153,654,911.19
5. Step 5: Solve for x
   x = 153,654,911.19/14,209.72
6. Step 6: Final answer
   x = 10,813.37