Finding the Fourth Proportional to 22,032.72, 30,417 and 16,985.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,032.72 : 30,417 = 16,985.88 : x
2. Step 2: Convert to fraction form
   22,032.72/30,417 = 16,985.88/x
3. Step 3: Cross multiply
   22,032.72x = 30,417 × 16,985.88
4. Step 4: Simplify right side
   22,032.72x = 516,659,511.96
5. Step 5: Solve for x
   x = 516,659,511.96/22,032.72
6. Step 6: Final answer
   x = 23,449.65