Finding the Fourth Proportional to 22,470.76, 30,981.72 and 17,157.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,470.76 : 30,981.72 = 17,157.16 : x
2. Step 2: Convert to fraction form
   22,470.76/30,981.72 = 17,157.16/x
3. Step 3: Cross multiply
   22,470.76x = 30,981.72 × 17,157.16
4. Step 4: Simplify right side
   22,470.76x = 531,558,327.12
5. Step 5: Solve for x
   x = 531,558,327.12/22,470.76
6. Step 6: Final answer
   x = 23,655.56