Finding the Fourth Proportional to 12,480.77, 17,231.23 and 7,946.01

Step by Step Solution

1. Step 1: Write the proportion equation
   12,480.77 : 17,231.23 = 7,946.01 : x
2. Step 2: Convert to fraction form
   12,480.77/17,231.23 = 7,946.01/x
3. Step 3: Cross multiply
   12,480.77x = 17,231.23 × 7,946.01
4. Step 4: Simplify right side
   12,480.77x = 136,919,525.89
5. Step 5: Solve for x
   x = 136,919,525.89/12,480.77
6. Step 6: Final answer
   x = 10,970.44