Finding the Fourth Proportional to 12,496.89, 17,245.73 and 7,191.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,496.89 : 17,245.73 = 7,191.60 : x
2. Step 2: Convert to fraction form
   12,496.89/17,245.73 = 7,191.60/x
3. Step 3: Cross multiply
   12,496.89x = 17,245.73 × 7,191.60
4. Step 4: Simplify right side
   12,496.89x = 124,024,355.91
5. Step 5: Solve for x
   x = 124,024,355.91/12,496.89
6. Step 6: Final answer
   x = 9,924.42