Finding the Fourth Proportional to 19,672.52, 27,147.72 and 10,720.10

Step by Step Solution

1. Step 1: Write the proportion equation
   19,672.52 : 27,147.72 = 10,720.10 : x
2. Step 2: Convert to fraction form
   19,672.52/27,147.72 = 10,720.10/x
3. Step 3: Cross multiply
   19,672.52x = 27,147.72 × 10,720.10
4. Step 4: Simplify right side
   19,672.52x = 291,026,137.43
5. Step 5: Solve for x
   x = 291,026,137.43/19,672.52
6. Step 6: Final answer
   x = 14,793.54