Finding the Fourth Proportional to 12,894.48, 17,798.40 and 7,518.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,894.48 : 17,798.40 = 7,518.72 : x
2. Step 2: Convert to fraction form
   12,894.48/17,798.40 = 7,518.72/x
3. Step 3: Cross multiply
   12,894.48x = 17,798.40 × 7,518.72
4. Step 4: Simplify right side
   12,894.48x = 133,821,186.05
5. Step 5: Solve for x
   x = 133,821,186.05/12,894.48
6. Step 6: Final answer
   x = 10,378.18