Finding the Fourth Proportional to 12,438.42, 17,164.06 and 7,060.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,438.42 : 17,164.06 = 7,060.22 : x
2. Step 2: Convert to fraction form
   12,438.42/17,164.06 = 7,060.22/x
3. Step 3: Cross multiply
   12,438.42x = 17,164.06 × 7,060.22
4. Step 4: Simplify right side
   12,438.42x = 121,182,039.69
5. Step 5: Solve for x
   x = 121,182,039.69/12,438.42
6. Step 6: Final answer
   x = 9,742.56