Finding the Fourth Proportional to 12,407.30, 17,131.02 and 7,633.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.30 : 17,131.02 = 7,633.67 : x
2. Step 2: Convert to fraction form
   12,407.30/17,131.02 = 7,633.67/x
3. Step 3: Cross multiply
   12,407.30x = 17,131.02 × 7,633.67
4. Step 4: Simplify right side
   12,407.30x = 130,772,439.16
5. Step 5: Solve for x
   x = 130,772,439.16/12,407.30
6. Step 6: Final answer
   x = 10,539.96