Finding the Fourth Proportional to 12,570.99, 17,346.03 and 7,264.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,570.99 : 17,346.03 = 7,264.78 : x
2. Step 2: Convert to fraction form
   12,570.99/17,346.03 = 7,264.78/x
3. Step 3: Cross multiply
   12,570.99x = 17,346.03 × 7,264.78
4. Step 4: Simplify right side
   12,570.99x = 126,015,091.82
5. Step 5: Solve for x
   x = 126,015,091.82/12,570.99
6. Step 6: Final answer
   x = 10,024.28