Finding the Fourth Proportional to 19,992.56, 29,992.49 and 10,002.53

Step by Step Solution

1. Step 1: Write the proportion equation
   19,992.56 : 29,992.49 = 10,002.53 : x
2. Step 2: Convert to fraction form
   19,992.56/29,992.49 = 10,002.53/x
3. Step 3: Cross multiply
   19,992.56x = 29,992.49 × 10,002.53
4. Step 4: Simplify right side
   19,992.56x = 300,000,581.02
5. Step 5: Solve for x
   x = 300,000,581.02/19,992.56
6. Step 6: Final answer
   x = 15,005.61