Finding the Fourth Proportional to 30,688.32, 42,348.96 and 17,260.32

Step by Step Solution

1. Step 1: Write the proportion equation
   30,688.32 : 42,348.96 = 17,260.32 : x
2. Step 2: Convert to fraction form
   30,688.32/42,348.96 = 17,260.32/x
3. Step 3: Cross multiply
   30,688.32x = 42,348.96 × 17,260.32
4. Step 4: Simplify right side
   30,688.32x = 730,956,601.27
5. Step 5: Solve for x
   x = 730,956,601.27/30,688.32
6. Step 6: Final answer
   x = 23,818.72