Finding the Fourth Proportional to 12,664.32, 17,478.93 and 7,362.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,664.32 : 17,478.93 = 7,362.24 : x
2. Step 2: Convert to fraction form
   12,664.32/17,478.93 = 7,362.24/x
3. Step 3: Cross multiply
   12,664.32x = 17,478.93 × 7,362.24
4. Step 4: Simplify right side
   12,664.32x = 128,684,077.60
5. Step 5: Solve for x
   x = 128,684,077.60/12,664.32
6. Step 6: Final answer
   x = 10,161.15