Finding the Fourth Proportional to 12,606.93, 17,396.50 and 7,431.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,606.93 : 17,396.50 = 7,431.98 : x
2. Step 2: Convert to fraction form
   12,606.93/17,396.50 = 7,431.98/x
3. Step 3: Cross multiply
   12,606.93x = 17,396.50 × 7,431.98
4. Step 4: Simplify right side
   12,606.93x = 129,290,440.07
5. Step 5: Solve for x
   x = 129,290,440.07/12,606.93
6. Step 6: Final answer
   x = 10,255.51