Finding the Fourth Proportional to 12,500.48, 17,245.74 and 7,192.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,500.48 : 17,245.74 = 7,192.12 : x
2. Step 2: Convert to fraction form
   12,500.48/17,245.74 = 7,192.12/x
3. Step 3: Cross multiply
   12,500.48x = 17,245.74 × 7,192.12
4. Step 4: Simplify right side
   12,500.48x = 124,033,431.57
5. Step 5: Solve for x
   x = 124,033,431.57/12,500.48
6. Step 6: Final answer
   x = 9,922.29