Finding the Fourth Proportional to 14,093.75, 19,449.58 and 7,720.20

Step by Step Solution

1. Step 1: Write the proportion equation
   14,093.75 : 19,449.58 = 7,720.20 : x
2. Step 2: Convert to fraction form
   14,093.75/19,449.58 = 7,720.20/x
3. Step 3: Cross multiply
   14,093.75x = 19,449.58 × 7,720.20
4. Step 4: Simplify right side
   14,093.75x = 150,154,647.52
5. Step 5: Solve for x
   x = 150,154,647.52/14,093.75
6. Step 6: Final answer
   x = 10,653.99