Finding the Fourth Proportional to 12,630.50, 17,430.09 and 7,041.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,630.50 : 17,430.09 = 7,041.50 : x
2. Step 2: Convert to fraction form
   12,630.50/17,430.09 = 7,041.50/x
3. Step 3: Cross multiply
   12,630.50x = 17,430.09 × 7,041.50
4. Step 4: Simplify right side
   12,630.50x = 122,733,978.74
5. Step 5: Solve for x
   x = 122,733,978.74/12,630.50
6. Step 6: Final answer
   x = 9,717.27