Finding the Fourth Proportional to 12,406.54, 17,123.73 and 7,630.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,406.54 : 17,123.73 = 7,630.59 : x
2. Step 2: Convert to fraction form
   12,406.54/17,123.73 = 7,630.59/x
3. Step 3: Cross multiply
   12,406.54x = 17,123.73 × 7,630.59
4. Step 4: Simplify right side
   12,406.54x = 130,664,162.90
5. Step 5: Solve for x
   x = 130,664,162.90/12,406.54
6. Step 6: Final answer
   x = 10,531.88