Finding the Fourth Proportional to 12,700.04, 17,528.06 and 7,664.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.04 : 17,528.06 = 7,664.98 : x
2. Step 2: Convert to fraction form
   12,700.04/17,528.06 = 7,664.98/x
3. Step 3: Cross multiply
   12,700.04x = 17,528.06 × 7,664.98
4. Step 4: Simplify right side
   12,700.04x = 134,352,237.55
5. Step 5: Solve for x
   x = 134,352,237.55/12,700.04
6. Step 6: Final answer
   x = 10,578.88