Finding the Fourth Proportional to 30,888.72, 42,628.20 and 17,454.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,888.72 : 42,628.20 = 17,454.96 : x
2. Step 2: Convert to fraction form
   30,888.72/42,628.20 = 17,454.96/x
3. Step 3: Cross multiply
   30,888.72x = 42,628.20 × 17,454.96
4. Step 4: Simplify right side
   30,888.72x = 744,073,525.87
5. Step 5: Solve for x
   x = 744,073,525.87/30,888.72
6. Step 6: Final answer
   x = 24,088.84