Finding the Fourth Proportional to 12,432.42, 17,164.34 and 9,242.00

Step by Step Solution

1. Step 1: Write the proportion equation
   12,432.42 : 17,164.34 = 9,242.00 : x
2. Step 2: Convert to fraction form
   12,432.42/17,164.34 = 9,242.00/x
3. Step 3: Cross multiply
   12,432.42x = 17,164.34 × 9,242.00
4. Step 4: Simplify right side
   12,432.42x = 158,632,698.25
5. Step 5: Solve for x
   x = 158,632,698.25/12,432.42
6. Step 6: Final answer
   x = 12,759.60